KEEP ISRM FREE!
Albert Nestler AG, a German firm located in Lahr, Germany and founded by Albert Nestler. His great grandson, Jürgen Nestler, in Hausach, Germany, is a major contributor to this gallery with many donations of slide rules from when the slide rule factory stopped production in 1978, exactly 100 years after its conception. Albert Nestler was also an OEM supplier to United States slide rule companies like Weber and Staedtler. Nestler contracted with the Japanese firm Uchida Yoko to make plastic slide rules in the later years and even entered the electronic 'slide rule' calculator market for a brief period.

Additional pictures of the Nestler factory and modern German exhibits are displayed at the end of this gallery page and on the Historical Photos,People with Slide Rules gallery.

Note that in 1955, 2-digit model numbers were replaced with 4-digit numbers and only 'NESTLER' is used, in place of Albert Nestler AG, in the branding of slide rules.


Albert Nestler Facilities 1878, 1911, 1921 and 1937

Nestler Factory in Lahr, Germany 1956, rebuilt post WWII.



Nestler No 0215 Darmstadt 50cm

ISRM 09.04.24.13


Nestler No 0215 Darmstadt 50cm
Made in Germany.
Front Scale (extended): 56cm, L // K, A [ B, CI, C ] D, P || S, T
Back Slide: [ LL1, LL2, LL3 ]
Back: Equivalents and Abbreviations,in French, German and English
Donated by Jürgen Nestler, Hausach, Germany



Albert Nestler No24 Rietz 50cm WWII Germany Army

ISRM 14.02.09.01

This is a hard case made of galvanized steel, painted desert tan.
Albert Nestler No24 Rietz 50cm WWII Germany Army
Made in Germany.
Front Scale (extended): 55cm // K, A [ B, CI, C ] D, L || 56.5cm
Back Slide: [ S, S&T, T ]
Back: Equivalents and Abbreviations,in German



Albert Nestler No28a Universal Stadia 400° 50cm. pre1938

ISRM 14.02.28.011
Albert Nestler No28a Universal Stadia 400° 50cm
Note: for topographic and tachymetric calculations, used by surveyors.
Made in Germany - Note: Screws on ends for holding down laminations.
Front Scale: 55cm // L, D [ B, Cos2, SinCos, C ] D || K, A
Back Scale: [ S, S&T, T ]
Back: Equivalents and Abbreviations in German
Acquired from Sofia, Bulgaria




REF Nestler 1.6m Cylindrical Rule (Rechenwalze)
Albert Nestler 1.6m Cylindrical Rule (Rechenwalze)
Made in Germany - circa1930
Scale: C ( D ) = 1.6 meters long
Archive - Ed Chamberlain Collection


REF Albert Nestler 12.5m Cylindrical Rule (Rechenwalze)
Nestler 12.5m Cylindrical Rule (Rechenwalze)
Made in Germany - circa1930
Scale: C ( D ) = 12.5 meters long
Archive - Ed Chamberlain Collection


Nestler Mannheim - Magnifying Cursor - Inch Model

ISRM 08.06.28.01
Nestler Mannheim - c1917 (Pickworth Data Slip)
Made in Germany, 'Railroad Track' style divisions Front Scale
25cm // A [ B, C ] D || 10.75in
Back Scale
[ S, ST, T] Slide Rule Data Slips
Well Scale: 10.75 to 21.75 inch depth scale
Back: English text: Slide Rule Data Slips, Compiled by C.N. Pickworth, Wh. Sc.
Donated by Marsha Boulton, UK. great grand daughter of Thomas Boulton
This slide rule was used by her great grandfather, Thomas Boulton, who worked in the UK PORTSMOUTH DOCKYARD and was second in command as a shipwright from 1900 to 1946. Born around 1885? in Portsmouth and joined Portsmouth Dockyard as an apprentice 1903, achieving master shipwright 1917. During this time he undertook refurbishment of HMS Victory (Nelsons flagship and still the oldest commissioned warship in the World) and the Royal Yacht Britannia. Promoted to second in command in the historic Portsmouth dockyard and before WWII was designing and building warships including HMS Amphion in 1935. This was sold to the Aussies and sunk by the Japanese in 1942 having been renamed Canberra. Died in 1947 Marsha has two letters from the Admiralty, from 1944, thanking Thomas Boulton for his zeal in the war effort and commiserations to her great gran, the widow on his death.


Nestler Mannheim - Centimeter Model

ISRM 13.06.20.04
Nestler Mannheim - c1917 (Pickworth Data Slip)
Made in Germany, 'Railroad Track' style divisions
Front Scale
10inch // A [ B, C ] D || 27.5cm
Back Scale: [ S, ST, T]
Well Scale: 27.5 to 55 inch depth scale (continuation of metric measure)
Back: English text: Slide Rule Data Slips, Compiled by C.N. Pickworth, Wh. Sc.
Gift of Phillip Rodley of UpperHutt, New Zealand
This slide rule and others in the ISRM archives and galleries were donated through the generosity and support of Phillip Rodley. Phil is very enthusiatic in finding slide rules in New Zealand that are not available to the rest of the world, and gifting them to ISRM. He enjoys the American brands that have leather sleeves and belt loops.


Nestler Mannheim c1920

ISRM 12.10.01.01
Nestler Mannheim (early - note screws on ends)
Made in Germany - c1920's - May have been for a US brand
Front Scale
10in // A [ B, C ] D || 25cm
Back Scale
[ sin, L, tg ]
Multilined cursor
Back: Equivalents (in English)


Nestler Pocket Mannheim c1925

REF
Nestler Pocket Mannheim (early - note screws on ends)
Made in Germany - c1925's
Front Scale
10cm // A [ B, C ] D || ??
Back Scale
[ sin, L, tg ]
Multilined cursor
Well Markings: Gefertigt von Albert Nestler A.-G. Lahr, Baden. für Robert Bosch A.-G. Stuttgart.
Back: Label Missing
Archive - Photo by Jacek Szukowski Collection, Poland
Note: Robert Bosch, (1861-1942) was a German engineer and industrialist who was responsible for the invention of the spark plug and magneto for automobiles and whose firm produced a wide range of precision machines and electrical equipment in plants throughout the world. He was trained in the United States and worked with Thomas Edison.


Nestler Rietz c1920

ISRM 12.06.25.01
Nestler Rietz (early - note screws on ends)
Made in Germany - c1920's - May have been an OEM model for a US brand. The scale configuration is common to K&E, Deitzgen, Lawrence, etc.
Front Scale
10in // A [ B, CI, C ] D, K || 25cm
Back Scale
[ S, L, T ]
Multilined cursor
Back: Equivalents (in English)


Nestler No.2 (Feinmessinstitut Joe Klawun No.11) Mannheim

ISRM 13.09.16.03
Nestler No.2 (Feinmessinstitut Joe Klawun No.11) Mannheim
Made in Germany by Albert Nestler, Additional branding for Feinmessinstitut Joe Klawun, Berlin-Charlottenburg 5
Note: Nestler model 2
Front Scale: A [ B, C ] D
Back Slide: [ S, Lg, T ]
Cursor: Missing, see Nestle No. 9 for proper cursor.
Back: Blank


S477 Albert Nestler A-G No9
Albert Nestler A-G No9
Made in Germany
Front Scale
K, A [ B, C ] D, L
Back Slider
29.3cm [ S, L, T ] 11-5/8in
Multilined cursor


P044 Nestler 11-ZE
Nestler 11-ZE - Electro Closed Simplex
Made in Germany - 10 scales
Front Scale
13cm // .1-.7 Cos, KW(A) [ PS(B), CI, C ] D, .7-.995 Cos
Back Slider
[ S, ref, T ]
3 lined cursor
Adv on Case: A.E.G.


P021 Nestler 11-ZM
Nestler 11-ZM - Closed simplex
Made in Germany
Front Scale
13cm // A [ B, C ] D
Back Slider
[ S, L, T ]
Multilined cursor
Back Adv: Ewald Friederichs.


P211 Nestler 11-ZR
Nestler 11-ZR - Closed simplex
Made in Germany
Front Scale (Note: no scale labels)
13cm // K, A [ B, CI, C ] D, L
Back Slider
[ S, S&T, T ]
Multilined cursor


Nestler 0115 Techniker

ISRM 12.11.22.06
Nestler 0115 Techniker
Made in Germany
Front Scale
13cm // A [ B, C ] D
Back Slider
[ S, ST, T ]
Multilined cursor
Donated from the collection of Robert L. Allison of Ballard, Washington.


Albert Nestler Nr.12a Pocket Mannheim c1915

ISRM 14.02.14.02
Albert Nestler Nr.12a Pocket Mannheim c1915
Made in Germany - Note screws on ends to secure the laminations.
Front Scale
13cm // A [ B, C ] D || 14.5cm
Back Scale
[ sin, L, tg ]
Well Markings: Seimens-Schuckert.
Back: Equivalents in German language.

Albert Nestler No.12b with Magnifying lens, c1924
ISRM 14.02.22.01
Albert Nestler No.12b with Magnifying lens, Pocket Mannheim
Made in Germany - c1924
Front Scale
13cm // A [ B, C ] D || 14.5cm
Back Scale
[ sin, L, tg ]
Well: 28cm
Back: Equivalents in German language.
Note: When this was received the magnifying element was loose and not positioned over the hairline. It was attached using a UV cure glass adhesive, Pacer Technology Super Glue brand. Leave it in the sun to cure.


Nestler 0121 Darmstadt

ISRM 09.01.12.115
Nestler 0121 Darmstadt
Made in Germany
Front Scale
13cm // P, K, A [ B, CI, C ] D, Sin Cos, Tan Cot
Back Slider
[ LL1, LL2, LL3 ]
Multilined cursor
Donated by David Hecht, Alexandria, VA


P008 Nestler 0121
Nestler 0121 - Closed simplex
Made in Germany
Front Scale
13cm // P, K, A [ B, CI, C ] D, Sin Cos, Tan Cot
Back Slider
[ LL1, LL2, LL3 ]
Multilined cursor


P050 Nestler 0123 Rietz
Nestler 0123 Rietz - Closed simplex
Made in Germany
Front Scale
13cm // K, A [ B, CI, C ] D, L
Back Slider
[ S, ST, T ]
Multilined cursor


P145 Nestler Rietz S
Nestler Rietz S - Closed simplex
Made in Germany
Front Scale
13cm // K, A [ B, CI, C ] D, L
Back Slider
[ S, ST, T ]
Multilined cursor


Nestler Rietz-S

ISRM 09.12.09.01
Nestler Rietz S - Closed simplex
Made in Japan by Uchida Yoko Co. for Nestler
Front Scale
13cm // K, A [ B, CI, C ] D, L
Back Slider
[ S, ST, T ]
Multilined cursor
Donated by Goichi Iida of Uchida Yoko Co., Tokyo, Japan.


P131 Nestler Polymath Pocket Duplex
Nestler Polymath Pocket Duplex
Made in Germany - 22 scales
Front Scale
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Rear Scale
CT, T, ST, DF [ CF, CIF, CI, C ] D, P, S, CS
Multilined cursor


P130 Nestler 0130 MultiMath Duplex
Nestler 0130 MultiMath Duplex
Made in Germany - 28 scales
Front Scale
P, S (Sin Cos), T1 (Tan>45° Cot), T2 (Tan <45° Cot), A [B, K, CI, C ] D, R1, R2, L, ST
Rear Scale
LL0, LL01, LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1, LL0
Multilined cursor


Albert Nestler No.14/3 Mannheim with Reciprocal Scale

ISRM 14.02.24.01
Albert Nestler No.14/3 Mannheim with Reciprocal Scale
Made in Germany NOte: "Railroad Track" divisions and lamination screws
Front Scale (extended)
27cm // A [ B, CI, C ] D || 27cm
Back Scale
[ S, lg, T ]
Well: 30-56cm
Multilined cursor
Back: Equivalents (in German)
Original owner: E.Schoder, written in case and in well of stock


Nestler 14/52 Micronta

ISRM 09.01.12.15
Nestler 14/52 Micronta
Made in Germany for US Brand Micronta (See Relay/Ricoh gallery)
Front Scale
10.5in // A [ B, C ] D
Back Scale
[ S, lg, T ]
Multilined cursor
Back: Equivalents (in English)
Donated by David Hecht, Alexandria, Virginia


Albert Nestler No 20 Rietz c1905

ISRM 13.04.12.02
Albert Nestler No 20 Rietz
Made in Germany by Albert Nester - Railroad Track scales
DR Patent: no number stamped in well. In 1906 the German patent 173660 was issued.
Front Scale
27cm // K, A [ B, C ] D, L || 1:25 6.8m
Back Scale
[ sin, sin/tg, tg ]
Multilined cursor
Back: Equivalents (in German)
Original location: Acquired from Sofia, Bulgaria


S326 Nestler "Kiel" 20 Hermann Schwerdtfeger
Nestler "Kiel" 20 Hermann Schwerdtfeger
Made in Germany
Front Scale
27cm // K, A [ B, C ] D, L || 1:25 6.8m
Back Scale
[ sin, sin/tg, tg ]
Multilined cursor
Back: Equivalents (in German)


Dieterich-Post Mannheim (Alfred Nestler 2012)

ISRM 13.10.07.09
Dieterich-Post Mannheim (Alfred Nestler 2012)
Made in Germany by Alfred Nestler for Dieterich-Post Co. Los Angeles - San Fransisco - Oakland
Note: Rebranding inside well.
Front Scale: A [ B, C ] D
Back scale: [ S, L, T ]
Note: Thin film plastic cursor. See the Nestler 2012 which has a metal framed cursor.


Nestler 2012 (Metal Frame Cursor)

ISRM 13.10.07.05
Nestler 2012 (Metal Frame Cursor)
Made in Germany - Albert Nestler A.G. Lahr (Baden)
Front Scale
A [ B, C ] D
Back Scale
[ S, L, T ]
Back: US Equivalents (English)
Previous Owner: Cosentio (Name in well of stock)


Albert Nestler No21 Darmstad (c1937)

ISRM 13.04.04.01
Albert Nestler No21 Darmstad (c1937)
Made in Germany by Albert Nester AG. - 1937 German Patent 650658 (cursor)
Front Scale
27cm, Lg // K, A [ B, CI, C ] D, Sin Cos || Sin Cos, Tan Ctg
Back Scale
[ LL1, LL2, LL3 ]
Multilined cursor, offset center hairline, KW, q, PSd
Back: Equivalents (German)


Albert Nestler 21 Darmstadt

ISRM 11.11.17.01
Albert Nestler 21 - Darmstadt
Made in Germany
Front Scale [extended]
27cm, L // K, A [ B, CI, C ] D, P || Sin Cos, Tan Ctg
Back Scale
[ LL1, LL2, LL3 ]
Multilined cursor, offset center hairline, KW, q, PSd (notice broader lens on edge)
Back: Equivalents (German)(notice differences in back label which includes instructions)


S436 Albert Nestler 21 Darmstadt
Albert Nestler 21 - Darmstadt
Made in Germany (Post WWII)
Front Scale
27cm, L // K, A [ B, CI, C ] D, Sin Cos || Sin Cos, Tan Ctg
Back Scale
[ LL1, LL2, LL3 ]
Multilined cursor, offset center hairline, KW, q, PSd
Back: Equivalents (German)


REF Albert Nestler 22
Albert Nestler 22 (Pocket version of No.23)
Made in Germany
Front Scale (extended): 16cm // K, A [ B, CI, C ] D, L || 18cm
Back Scale: [ S, S&T, T ]
Well: 18 to 34cm
Multilined cursor with magnifying lens
Back: Equivalents (German)
Scan by Prof Joerne Luetjens Collection, Germany


REF Albert Nestler 22R Rietz
Albert Nestler 22R Rietz (Pocket version of No.23)
Made in Germany
Front Scale (extended): 16cm // K, A [ B, CI, C ] D, L || 18cm
Back Scale: [ S, S&T, T ]
Well: 18 to 34cm
Multilined cursor
Back: Equivalents (German)
Scan by C. Hamann Collection, Germany


S420 Albert Nestler 23RF Rietz c1930
AlbertNestler 23RF Rietz - Closed simplex
Made in Germany
Front Scale (note change in extended scales from S250/S565)
28cm // K, A [ B, CI, C ] D, L || 1:25 6.5cm
Back Scale
[ S, S&T, T ]
Well: 30-55cm
Multilined cursor
Back: Equivalents (German)



S250 Albert Nestler 23R Rietz
Albert Nestler 23R Rietz
Made in Germany
Front Scale (extended)
28cm // K, A [ B, CI, C ] D, L || 1:25 6.5cm
Back Scale
[ S, S&T, T ]
Well: 30-55cm
Multilined cursor
Th. Zlocha, Wien
Back: Equivalents (German)


S565 Albert Nestler 23RF Rietz
Albert Nestler 23RF Rietz - Spanish
Made in Germany (Instria Alemana)
Front Scale
28cm // K, A [ B, CI, C ] D, L || 1:25 6.8cm
Back Scale
[ S, S&T, T ]
Well: 30-56cm
Multilined cursor
Back: Equivalents (Spanish)
Donated by Bill Demian, Modesto, CA



Albert Nestler 23RF/3 Rietz

ISRM 09.04.24.01
Albert Nestler 23RF/3 Rietz - Closed simplex
Made in Germany
Front Scale (extended)
27cm // K, A [ B, CI, C ] D, L || 1:5 cm
Back Scale
[ S, S&T, T ]
Multilined cursor
Back: Equivalents (German)
Donated by Jürgen Nestler, Hausach, Germany


Albert Nestler 23RF/3 Rietz

ISRM 09.04.24.02
Albert Nestler 23RF/3 Rietz - Closed simplex
Made in Germany
Front Scale (extended)
27cm // K, A [ B, CI, C ] D, L || 1:25 cm
Back Scale
[ S, S&T, T ]
Well: 30-55cm
Multilined cursor
Back: Equivalents (German)
Donated by Jürgen Nestler, Hausach, Germany


REF Nestler 0205 Polymath-Duplex Demonstration Rule in Carrying case
Nestler 0205 Polymath-Duplex Demonstration Rule in Carrying case
Made in Germany - 1962-1972
Photo by Jürgen Nestler, Hausach, Germany


Nestler 0210 Darmstadt

ISRM 09.04.24.04
Nestler 0210 Darmstadt - Closed simplex
Made in Germany - date code 275 (Feb 1975)
Front Scale (extended)
27cm, lg(L) // K, A [ B, CI, C ] D, P || S, T
Back Scale
[ LL1, LL2, LL3 ]
Multilined cursor
Back: Equivalents (German)
Donated by Jürgen Nestler, Hausach, Germany


Nestler 0218 Darmstadt

ISRM 09.04.24.05
Nestler 0218 Darmstadt - Closed simplex
Made in Germany - date code 166 (Jan 1966)
Front Scale (extended)
10 in // L, K, A [ B, CI, C ] D, P, S, T
Back Scale
[ LL1, LL2, LL3 ]
Multilined cursor
Back: Equivalents (English)
Donated by Jürgen Nestler, Hausach, Germany


S206 Nestler 0232 Rietz
Nestler 0232 Rietz - Closed simplex
Made in Germany
Front Scale (extended)
27cm // K, A [ B, CI, C ] D, L || 10.5in
Back Scale
[ Sin, SinTan, Tan ]
Multilined cursor
Back: Equivalents (German)


Nestler 0252 Beta

ISRM 09.04.24.03
Nestler 0252 Beta
Made in Germany - date code 1069 (Sep 1969)
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
M(cm), DF [ CF, CIF, CI, C ] D, Z(inch)
Multilined cursor
Donated by Jürgen Nestler, Hausach, Germany


Nestler 0260 Mechanica (for Machinists)

ISRM 09.04.24.09
Nestler 0260 Mechanica (for Machinists)
Made in Germany - date code 375 (Mar 1975)
Front Scale (extended)
27cm, Rohr (phi)mm // Schnittiefe a, Hobein m/s, (Pattenbr.) D.H./min [ Schnittgeschw.m/min, Vorschub s/U in mm Vorschub s/U in mm, C ] D th in min. || tan, sin
Back Scale
[ Länge, Plattenstärke/in mm, shape mm ]
Multilined cursor
Back: Speeds and feeds (German)
Donated by Jürgen Nestler, Hausach, Germany


Albert Nestler No.28 Universal 400° Stadia, post 1938

ISRM 14.02.22.01
Albert Nestler No.28 Universal 400° Stadia, post 1938
Note: for topographic and tachymetric calculations, used by surveyors.
Made in Germany - Note: no screws on ends for holding down laminations.
Front Scale
27cm // L, D [ B, Cos2, SinCos, C ] D || K, A
Back Scale
[ S, S&T, T ]
Well Markings: Seimens-Schuckert.
Back: Equivalents in German language.


REF Nestler Nr. 29a American-System Log Log Duplex
Nestler Nr. 29a American-System Log Log Duplex- c1950
Made in Germany - 17 scales
Front Scale:
K, DF [ CF, CIF, CI, C ] D, L
Back Scale
LL0, A [B, S, T, C ] LL3, LL2, LL1
archive - Scan donated by Jürgen Nestler, , Hausach, Germany


Nestler 0290 Polymath Duplex - Screwed Cursor Assembly

ISRM 14.03.09.01
Nestler 0290 Polymath Duplex - dc77
Made in Germany, 24 scales Improved Dec Trig Log Log
Front Scale
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale
CT, T, ST, DF [ CF, CIF, CI, C ] D, P, S, CS


Nestler 0290 Polymath Duplex - Injection Molded Cursor

REF
Nestler 0290 Polymath Duplex - dc1260
Made in Germany, 22 scales Improved Dec Trig Log Log
Front Scale
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale
CT, T, ST, DF [ CF, CIF, CI, C ] D, P, S, CS
archive - Scan by Steve Seale Collection, Nashville, Tennessee


Nestler 0291 Polymath Duplex

ISRM 04.11.11.01
Nestler 0291 Polymath Duplex - 1954
Made in Germany, 1954 - 22 scales Improved Dec Trig Log Log
Front Scale
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale
CT, T, ST, DF [ CF, CIF, CI, C ] D, P, S, CS
Note: Pickett 140 Cursor. (In ISRM display case)
Manual 2.44MB


Nestler 0292 MultiMath Duplex

ISRM 12.06.24.39


Nestler 0292 Insert
(note the small black tool taped to the insert. It is used to take apart the cursor for cleaning.
Nestler 0292 MultiMath Duplex - 1970
Made in Germany - 28 scales - dc 2170
Front Scale
P, S (Sin Cos), T1 (Tan>45° Cot), T2 (Tan<45° Cot), A [B, K, CI, C ] D, R1, R2, L, ST
Back Scale
LL0, LL01, LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1, LL0
Multilined cursor: Kw, PS, d, q
Manual 2.44MB
Donated by Anonymous collector and daughter.
The collector, who prefers to remain anonymous, obtained a B.S. degree in Physics from Taiwan's National Tsing Hua University in 1971. His love for computation has encouraged him to build a collection of slide rules, HP and TI calculators, as well as abaci, many displayed at ISRM.


REF Nestler 29/52 Log Log Duplex
Nestler 29/52 Log Log Duplex - c1950
Made in Germany - 24 scales
Front Scale: Note
CT, T, ST, A [B, L, K, C ] D, P, S, CS
Back Scale
LL01, LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1
archive - Scan donated by Wayne Black, his personal SR


Nestler 0297 Electronic I Duplex

REF
Nestler 0297 Electronic I Duplex
Made in Germany, 22 scales Improved Dec Trig Log Log
Front Scale
20Log U2/U1, U2/U1, √(Z2/Z1) [ R.Z, G.Y, U ] J, ln U2/U1
Back Scale
dbm PegelI, PI [ UI, UII, Z2 ] Zges, PII, dbm PegelII
archive - Scan by Steve Seale Collection, Nashville, Tennessee


Albert Nestler Nr.31 Timber Slide Rule (c1938)

ISRM 14.01.10.01

Albert Nestler Nr.31 Timber Slide Rule (8inch/20cm)
Cataloge description: (German) Nr. 31 Nestler Holzhandler Rechenschieber - Dieser Rechenschieber ist ein auberordentlich praktisches, unentbehrliches Hilfsmittel, speziell fuer fie gesmante Holzindustrie. Bei Taxationen, Holzkaufen, Holzversteigerungen etc., bei Berechnung von Rund und Kantholz etc., leistet er hervorragende Dienste.
Translated to English: No.31 Nestler Timber slide rule - This slide rule is an extraordinarily practical, indispensable tool, especially for the entire timber industry. In taxation, wood buying, wood auctions etc., when calculating round and square timber, etc., It does an excellent service.
Made in Germany by Albert Nestler A.G., c1938)
Front Scales: A [ l, U ] D
Back Scale: 23cm, 9inch
Original owner: The uncle of Matej Marka's mother, Slovenia

1938 catalog entry
Manual 2.98MB pdf
Scan of 1938 catalog and instructions by Jürgen Nestler in Germany, grandson of founder Albert Nestler (1851-1901). Jürgen said his father used this model of slide rule to calculate the wood required for the production of Nestler slide rules.


Nestler 0320 Oil-Rule, Dr. Schmeling

REF
Nestler 0320 Oil-Rule, Dr. Schmeling
Made in Germany br> Front Scale
λ°F, °F, °C, X² [ X², 1:X, X ] X, d15°C, lgx/°API, λ°C
Back Scale
Oil Thickness Hints [ W, Cs, °E, SSU ] Equations
Multilined cursor
Scan by Jürgen Nestler, Hausach, Germany


Nestler Nr. 33 Chemiker

REF
Nestler Nr. 33 Chemiker
Made in Germany
Front Scales: 27cm // Sought [ Found CI C ] D L
Scan by Jürgen Nestler, Hausach, Germany


Nestler 0330 Chemiker

REF
Nestler 0330 Chemiker
Made in Germany
Front Scales: 10.5in // Sought [ Found CI C ] D L
Scan by Peter Owen, UK


Nestler 35 System Peter

REF
Nestler 35 System Peter
Made in Germany
Front Scales: 25cm // LL0, A [ B, C ] D LL1 || 25cm
Back Scale: [ S, T]
Well: 29-55cm
Scan by Hubert


Nestler No.37 Electro (c1941)

ISRM 14.02.28.02
Nestler No.37 Electro - Closed simplex
Made in Germany
Front Scale
27cm // V, PS [ KW, CI, C ] D, L(U) || LL2, LL3
Back Scale
[ S, S&T, T ]
Multilined cursor
Back: Electrical Constants
Note: This is the same model as used by rocket scientists Sergei Korolev (USSR) and Wehrner von Braun (Germany/USA).

Sergei Pavlovich Korolev (1906-1965) Chief Designer Of Soviet Spacecraft

Smithsonian Air and Space Museum Display, Sergei P. Korolev

Smithsonian Air and Space Museum Display, Wernher Von Braun


Nestler 0370 Electro

ISRM 09.04.24.06
Nestler 0370 Electro - Closed simplex
Made in Germany - date code 175 (Jan 1975)
Front Scale
27cm // V, A(PS) [ B(KW), CI, C ] D, U || LL2, LL3
Back Scale
[ S, S&T, T ]
Multilined cursor
Donated by Jürgen Nestler, Hausach, Germany


Albert Nestler A-G No.40 Commercial slide rule

ISRM 12.01.10.01
Albert Nestler A-G No.40 Commercial slide rule
Made in Germany, 1925 - 1935
Front Scale
27cm // q (percentage), Z(Zinsen=Interest) [ T(Tag=days), M(m) Metric/Monetary Conversions, D(Discount) ] K (Kapital=capital), L(line of numbers in equal parts) || 10in
Back Scale:
[ £, S, d ] (equivalents among the divisions of the Pound and the Guinea)
Back: Conversions (German)
Original Owner: Martin Vaupel in Bremen, Germany (Engraved in well of slide rule and embossed on case
Note1: the Z and T scales allow the rule to be used for ordinary multiplication and division calculations.


REF Albert Nestler A-G No.40
Albert Nestler A-G No.40
Made in Germany
25cm // C [ D, Metric/Monetary Conversions, I ] A || 11-5/8in
Back Slider
[ L, S, d ]
Archive - Scan by Peter Owen, UK


Nestler 0408 Hanseat

ISRM 09.04.24.08
Nestler 0408 Hanseat (Finance)
Made in Germany - date code 166 (Jan 1965)
Front Scale (extended)
DF(KZ) [ CF(T), CI(%), C(T) ] D(Z)
Back:Blank
Dual lined (red and black) cursor
Donated by Jürgen Nestler, Hausach, Germany

Insert, Cleaning Instructions


Albert Nestler A-G No.41 Pocket (1923)

ISRM 13.12.03.02
Albert Nestler A-G No.41 Pocket (1923)
Made in Germany
Front Scale: A [ B, C ] D
Back
11cm [ S, L, T] 4.25inch
Note: Cracked glass


Nestler 0439 System JAKOB (Reinforced Concrete)

ISRM 09.04.24.11
Nestler 0439 System JAKOB (Reinforced Concrete)
Made in Germany - date code 274 (Feb 1974)
Front Scale (extended)
27cm, Yh(Kx), Yh(Kz), // K, A [ B, R(Fe) CI, C ] D, Yh(m), || Yh(Kf),Yh(Kf),
Back Scale
[ S, S&T, T ]
Multilined cursor
Back: Equivalents (German)
Donated by Jürgen Nestler, Hausach, Germany
See Explanation and how used at Ron manley's site


Nestler Elemath RS Duplex

ISRM 09.04.24.14
Nestler Elemath RS Duplex - c1975
Made in Japan by Uchida Yoko Co. for Nestler
20 scales - Student Rule
Front Scale
K, A [B, CI, C ] D, L
Back Scale
T1 (Tan>45° Cot), T2 (tan< 45° Cot), DF [ CF, CIF, CI, C ] D, S (Sin Cos), ST < 6°
Multilined cursor: Kw, PS, d, q
Donated by Ted Hume and the Oughtred Society, through the generosity of Jürgen Nestler - Sets of these are available in the ISRM Loaner Program
Manual 2.44MB (Includes above scales)


Nestler Polymath-Duplex

ISRM 09.04.24.10
Nestler Polymath-Duplex - c1975
Made in Germany - 24 scales
Front Scale
LL01, LL02, LL03, A [B, L, K, C ] D, LL3, LL2, LL1
Back Scale
Cot) T, ST, DF [ CF, CIF, CI, C ] D, P, S Cos
Multilined cursor: Kw, PS, d, q
Donated by Jürgen Nestler, Hausach, Germany

Insert, Cleaning Instructions (Elemath and Ploymath series)


Nestler Elemath Log Log

ISRM 09.04.24.07
Nestler Elemath Log Log - c1975
Made in Germany - 25 scales
Front Scale
L, K, A [B, BI, CI, C ] D, LL1, LL2, LL3
Back Scale
T1 Cot, T2 Cot, DF [ CF, CIF, CI, C ] D, P, S Cos, ST
Multilined cursor: Kw, PS, d, q
Donated by Jürgen Nestler, Hausach, Germany


Albert Nestler 1938 Product Line Catalog

This was produced in celebration of the 60th anniversary. Scanned by Jürgen Nestler, Hausach, Germany

Nestler 1967 Product Line Catalog

Scanned by Jürgen Nestler, Hausach, Germany

Article in German Newspaper
on Jürgen Nestler.


Pre-WWII family tree of countries that Nestler was shipping slide rules to.

These pictures, provided by Jürgen Nestler, show images of the Nestler factory in Lahr, Germany in the 1950's. Of special interest is the images of the dividing engine used to create the divisions on multiple slide rules simultaneously. Lady workers inspect slide rules and adjust the cursor hairline to the index before shipping.


These pictures, provided by Jürgen Nestler, are of the grand opening of the Nestler exhibit in the Lahr Museum in Lahr Germany. Jeurgen may be seen standing next to the mayor of Lahr.


Albert Nestler Timeline

1878 - Albert Nestler and Theophil Beck establishes factory in Baden, Germany to make slide rules. Company named Beck and Nestler
1878 - at the beginning Nestler works with dividing engine
1886 - Slide rule have celluloid laminations on mahogany stocks and slides by Dennert&Pape,
1890 - Produces Universal Slide Rule (also exported for K&E, Dietzgen and other more in the USA).
1890 - glass cursor with metal edge guides used.
1900 - Nestler begins making their own cursors for slide rules.
1901 - Albert Nestler dies. Succeeded by sons Albert and Richard.
1901 - Laminations reinforced with screws
1902 - Model number based on simple digits 1, 2, 3,...40,44, etc.
1903 - Nestler produces first "Rietz" scale set based on Max Rietz patent 181110
1905 - metal sheetmetal framed cursor introduced
1910 - semi-circle magnifier glued to some glass len provided as an option
1911-12 catalog shows 56 different models
1922 - Company becomes Albert Nestler AG.
1923 - Albert Nestler's daughter becomes a slide rule provider to Nestler, MASSAG in Schaffhausen, Switzerland
1924 - A French book describes 32 models of Albert Nestler slide rules.
1928 - Plastic edge cursor attached to sheet metal cursor with screws
1928 - Mahogonay duplex slide rules introduced (American 29)
1934 - all plastic(celluloid) pocket slide rules introduced
1934 - some low cost slide rules with folded plastic film cursors intriduced
1938 - Catalog shows model number from 1 through 43. 28 cursor designs are shown.
Pre-WWII - Nestler is shipping slide rules to 60 countries - see Nestler Country Family Tree
1941 - Bright metal plated metal (steel) framed cursors introduced
1945 - Production facility damaged by war and equipment confiscated by French occupation forces.
1950 - Nestler family makes a new beginning, creating new models of simplex Rietz, Darmstdt and Electro. Screws on laminations
1951 - Screws on laminations removed as adhesives are improved.
1951 - Injection molded all-plastic cursors introduced
1954 - Some slide rules are made in Switzerland (Nestler daughter MASSAG in Schaffhausen since 1923)
1955 - All plastic double-sided slide rules introduced. Polymath, Multipath, Rietz and the "School" series
1955 - Company name is now just "NESTLER".
1955 - 2-digit model numbers replaced with 4-digit numbers.(beginning with "no.0320 Oilrule,system Schmeling)
1962 - Metal and plastic duplex slide rules introduced.
1967 - Catalog shows 30 different slide rule models with 7 demonstration models.
1972 - Nestler OEM's slide rules from Uchida Yoko Co. Japan
1978 - Nestler stops selling slide rules after 100 years due to the electronic calculator. Company concentrates on drafting equipment and CAD software on computers.
1994 - Company closes down.

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