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| 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 factory closed in 1972. 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. Pictures of the Nestler factory and German exhibits are displayed at the end of this gallery page and on the Historical Photos -People with Slide Rules gallery |
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![]() Nestler Factory in Lahr, Germany 1956 |

![]() REF Nestler 1.6m Cylindrical Rule (Rechenwalze) |
Nestler 1.6m Cylindrical Rule (Rechenwalze) Made in Germany - circa1930 Scale: C ( D ) = 1.6 meters long Archive - Ed Chamberlain Collection |
![]() REF 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
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![]() Nestler Mannheim - Magnifying Cursor ISRM 08.06.28.01 |
Nestler Mannheim - c1917 Made in Germany, English text Front Scale 25cm // A [ B, C ] D || 10.75in Back Scale [ S, ST, T] Slide Rule Data Slips Well Scale 21 inch depth scale Donated by Marsha Boulton, UK. 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 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 - Phoyo 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) |
![]() 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. |
![]() ISRM Nestler 0121 Darmstadt |
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 |
![]() ISRM Nestler Rietz-S |
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 |
![]() ISRM Nestler 14/52 Micronta |
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, Default, 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) |
![]() S266 Nestler 2012 |
Nestler 2012 - Closed simplex Made in Germany - Albert Nestler A.G. Lahr (Baden) Front Scale A [ B, C ] D Back Scale [ S, L, T ] Back: US Equivalents (English) |
![]() 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) |
![]() S250 Nestler 23R Rietz |
Nestler 23R Rietz - Closed simplex 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 Nestler 23RF Rietz |
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 ![]() |
![]() S420 Nestler 23RF Rietz |
Nestler 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) ![]() |
![]() ISRM Nestler 23RF/3 Rietz |
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
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![]() ISRM Nestler 23RF/3 Rietz |
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 |
![]() ISRM Nestler 0210 Darmstadt |
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 |
![]() ISRM Nestler 0218 Darmstadt |
Nestler 0210 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) |
![]() ISRM Nestler 0252 Beta |
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 |
![]() ISRM Nestler 0260 Mechanica (for Machinists) |
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 |
![]() 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
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![]() S123 Nestler 0291 Polymath Duplex |
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 |
![]() 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 |
![]() 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 |
![]() S254 Nestler 37 Electro |
Nestler 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 |
![]() REF Nestler 0320 Oil-Rule, Dr. Schmeling |
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 |
![]() REF Nestler Nr. 33 Chemiker |
Nestler Nr. 33 Chemiker Made in Germany Front Scales: 27cm // Sought [ Found CI C ] D L Scan by Jürgen Nestler, Hausach, Germany |
![]() REF Nestler 0330 Chemiker |
Nestler 0330 Chemiker Made in Germany Front Scales: 10.5in // Sought [ Found CI C ] D L Scan by Peter Owen, UK |
![]() REF Nestler 35 System Peter |
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 |
![]() ISRM Nestler 0370 Electro |
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 |
![]() ISRM Albert Nestler A-G No.40 Commercial slide rule |
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 |
![]() ISRM Nestler 0408 Hanseat |
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 |
![]() ISRM Nestler 0439 System JAKOB (Reinforced Concrete) |
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 Explantion and how used at Ron manley's site |
![]() ISRM Nestler Elemath RS Duplex |
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 |
![]() ISRM Nestler Polymath-Duplex |
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) |
![]() ISRM Nestler Elemath Log Log |
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 |
![]() Nestler 1967 Product Line Catalog Scanned by Jürgen Nestler, Hausach, Germany |
![]() Article in German Newspapr on Jürgen Nestler. |