European Slide Rules
(Manufacturers. Distrubutors and Countries not found in their own gallery)
This gallery is dedicated to slide rules and manufacturers located within Central and Eastern Europe. Additional Countries and manufacturers which were part of the Soviet Bloc may be found in the USSR/Soviet gallery.
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ALKU Rechenschieberfabrik, ALfred KUhmann


REF ALKU Rechenschieber

ALKU Rechenschieber
Made in Neueibau, East Germany, Designed by Alfred Kuhmann, c1945
Front Scale
A [ B, R(CI), C ] D
Back - Blank
Note the 7" long main substrate, stator and slides are made of glass with the scales made of paper laminate.
Archive - Scan Donated by Nathan Zeldes, Israel.
Instructions, 2 pgs (200Kb PDF)

CURTA Calculator
Contina AG Mauren

Notes: See Wikipedia Entry on Curta Calculators
1) Austrian Curt Herzstark designed this calculator while imprisoned in a Nazi concentration camp during WWII. Soon after the war, Herzstark established a factory in Liechtenstein with the backing of the Prince of Liechtenstein. The device, a very small and highly sophisticated calculating machine, was based on Leibniz's stepped drum concept. Herzstark called his invention "Curta", a name he had wanted to give the daughter he never had.
2)Production was started at April 1, 1947. In 1966 CONTINA AG was bought by the firm HILTI AG in Schaan. Production was stopped on November 1970. CURTAs were sold until early 1973. There are +/- 80000 Curta I and +/- 60000 Curta II machines. Curt Herzstark heard 150,000 to 160,000, maybe even more CURTAs were manufactured.


ISRM CURTA Type I

CURTA Type I sn20141 (Mfg'd January 1953)
Made in Liechtenstein, Designed by Curt Herzstark
The Type I Curta has 8 digits for data entry (known as "setting sliders"), a 6-digit revolution counter, and an 11-digit result counter.
.
Owned by Ward Anthony, Littleton, Colorado. Provided by his son Russell Anthony
Ward Anthony (1938-2012) was an aerospace engineer at Martin Marietta in Littleton, Colorado and worked on many of the launch systems. He used this CURTA in his profession as well as while competing in car rallye's
Instructions (370Kb PDF)

More Information at The CURTA Page



REF CURTA Type II (Metal Body)

CURTA Type II (Metal Body)
Made in Liechtenstein, Designed by Curt Herzstark
The larger Type II Curta, introduced in 1954, has 11 digits for data entry (known as "setting sliders"), an 8-digit revolution counter, and a 15-digit result counter.
Archive - Photo courtesy of The CURTA Page


REF CURTA Type II (Plastic Body)

CURTA Type II (Plastic Body)
Made in Liechtenstein, Designed by Curt Herzstark
The larger Type II Curta, introduced in 1954, has 11 digits for data entry (known as "setting sliders"), an 8-digit revolution counter, and a 15-digit result counter.
Archive - Photo courtesy of The CURTA Page



P106 Eco-Bra 1270
Eco-Bra 1270 Pocket - Closed simplex
Made in Germany - c1940 - all aluminum
Front Scale (unmarked)
14cm // A [ B, C ] D
Back Adv: Aluminum Company of Canada


REF Eco-Bra Rietz R141
Eco-Bra Rietz R141
Made in Germany - c1960 - Plastic
Front Scale
13cm // A [ B, CI, C ] D, K
Archive - W. Girbardt (Univ Greifswald, Germany) Collection


P257 Eco-Bra Darmstadt R143
Eco-Bra Rietz R141
Made in Germany - c1960 - Plastic
Front Scale
13cm // LL2, LL3, A [ B, CI, C ] D, K, LL1
Back Scale
P, T Cot, L, S Cos
Back Adv: INA-Nadellager



P267 Eco-Bra nr1461 System Rietz
Ecobra nr1461 System Rietz
Made in Germany - c1950 - Painted aluminum
Front Scale
K, A [ B, R, C ] D, lg
Back Scale
5in [ sin, tg ]
Original location: Netherlands


REF Eco-Bra 154 Cosmos
Eco-Bra 154 Cosmos
Made in Germany - Plastic - Identical to Hope 530
Front Scale (extended)
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, Ll2, LL1
Back Scale
T Cot, ST ST, DF [ CF, CIF, CI, C ] D, P, S Cos
Archive - Rod Lovette Collection


REF Eco-Bra 1460
Eco-Bra 1460
Made in Germany - c1950
Front Scale (extended Scales)
14cm // K, A [ B, R, C ] D, Lg
Cursor: Multiple hairlines
Archive - Scan provided by Cassou Olivier (France) Collection


REF Eco-Bra 1500
Eco-Bra 1500
Made in Germany - c1940 - all aluminum
Front Scale
25cm // K, A [ B, CI, C ] D, L
Archive - W. Girbardt (Univ Greifswald, Germany)Collection


ISRM Eco-Bra 1611 Darmstadt Special
Eco-Bra 1611 Darmstadt Special
Made in Germany - Painted Aluminum
Front Scale (extended)
T Cot, S Cos, DF [ CF, CI, C ] D, P
Back Scale
K, A [ B, Lg, C ] LL3, LL2, LL1
Donated by David Hecht, Alexandria, VA


REF Eco-Bra 1711 Cosmos
Eco-Bra 1711 Cosmos
Made in Germany - Aluminum
Front Scale (extended)
LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, Ll2, 
Back Scale
LL01, K, A [ B, T<45 Cot, T>45 Cot, ST, S Cos ] D, P, S , LL1
Archive - Rod Lovette Collection

Fedra



ISRM Fedra Log Log
Fedra Log Log - Closed duplex - DC Aug1968
Made in East Germany possibly by Veb Mantissa
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
27cm, S, ST, T, LL1, LL2, LL3, 10.75Inch
Back Slide: [Greek Alphabet]
Same as Staedtler Mars 544-52 Log Log
Donated by Seth Balish

Note: This model is available in the Slide Rule Loaner Program supplied through the generosity of Skip Zogopoulos, Exeter, NH who has donated over 200 of these slide rules to ISRM as well as many other items to support the activities of the museum.

Friedmann



P182 Friedmann 4in Pocket
Mannheim
Friedmann 4in Pocket Mannheim
Made in Germany 
Front Scale
A [ B, CI, C ] D, K
Back Slider
[ S, L, T ]

Gamma



P014 Gamma Pocket
Gamma Pocket - Closed simplex
Made in Hungary
Front Scale (unmarked)
13cm // K, A [ B, CI, C ] D, L
Back Slider
[ S, S&T, T ]


REF Gamma Thermotechn. 2512 Darmstadt dc42
Gamma Thermotechn. 2512 Darmstadt dc42
Made in Hungary
Front Scale (unmarked)
27cm, L // K, A [ B, CI, C ] D, P || S, T
Back Slider
[ LL1, LL2, LL3 ]
Back: Equivalents and Conversion factors
Note: Early riveted laminated wood stock, railroad track divisions, Plastic cursor with hairline wrapped on edges.
Scan Donated by Giovanni Brenda Collection, Italy

H-H Universum



P255 H-H Universum System Rietz
H-H Universum System Rietz
Made in Germany - c1930
Front Scale - Extended
22cm // A [ B, CI, C ] D, L \\ 22cm
Back Scale: [ S, T ]
Multilined Cursor
Back: Conversions (German)

IWA - Ingenieurerbüro für wirtschafliches Arbeiten

IWA is most famous for its slide charts. These in this gallery more resemble generic slide rules.


REF IWA 0272 Electronic
IWA 0272 Electronic
Made in Germany for Dutch firm De Muiderkring N.V.- c1963
Front Scale - Extended
Lambda, Omega, f [ C, L, RC ] L/C, RL
Back Scale:
K, Sin Cos, A [ B, CI, C ] D, Ln, 25cm
Multilined Cursor
Archive - scan by Tom Cattrall


REF IWA 01206 Machining - Roughness Slide Rule for Turning
IWA 01206 Machining - Roughness Slide Rule for Turning
Made in Germany - c1971
Front Scale - Extended
26 cm // r (4 scales), feed [ V in m.min ] Ra, Rt \\ 10.2 inches
Back: Direction in English and German
Archive - scan by Jim Cerney

Karl-Wess



P125 Karl Wess
Karl Wess - Closed simplex
Made in Germany(?Aristo)
Front Scale
13cm // A [ B, CI, C ] D, K || 5inch
Back Slider: [ S, L, T ]

Kern & Co. Aarau, Suisse



REF Kern Stadia Surveyor's Slide Rule
Kern Stadia Surveyor's Slide Rule
Made in Switzerland by Kern & Co. Aarau, Suisse
Closed body - Steel stock and cursor
Front Scale
D, D [ X, Sin-Cos, TG. ] F-R
Cursor: 0-100 veneer scale
Archive - Tom dilatush Collection


REF Kern Stadia Surveyor's Slide Rule
Kern Stadia Surveyor's Slide Rule
Made in Switzerland by Kern & Co. Aarau, Suisse
Closed body - Aluminum stock and cursor
Front Scale
Dist. Feet, Dist Miles [ Vertical Angles ] Diff. Elev. Part, Correction in Feet For Curvature.
Archive - David Ingram Collectionwww.surveyhistory.org

Joe Franz Klawun
Feinmessinstitut Klawun, Berlin - Charlottenburg 5



REF Feinmessinstitut Klawun No.31C
Feinmessinstitut Klawun No.31C
Made in Germany by Faber-Castell
Front Scale (extended)
14cm // K, A [ B, CI, C ] D, L
Back Scale: S, ST, T
archive - Andreas Tabak Collection, The Netherlands


REF Feinmessinstitut Klawun Rietz No.100
Feinmessinstitut Klawun Rietz No.100
Made in Germany by Faber-Castell
Front Scale (extended)
27cm // K, A [ B, CI, C ] D, L
Back Scale: Sin, Sin/Tg, Tg
archive - Andreas Tabak Collection, The Netherlands


REF Feinmessinstitut Klawun Rietz No.100 Hanover
Feinmessinstitut Klawun Rietz No.100 Hanover
Made in Germany by Faber-Castell
Front Scale (extended)
27cm // K, A [ B, CI, C ] D, L
Back Scale: Unknown, but assumed to be S, SRT, T
archive - Andreas Tabak Collection, The Netherlands


REF Feinmessinstitut Klawun No.125 LL Hanover
Feinmessinstitut Klawun No.125 LL Hanover
Made in Germany by Faber-Castell
Front Scale (extended)
27cm // K, A [ B, L, CI, C ] S, ST, T1, T2
Back Scale: LL2, S', LL1
Multi-lined Cursor
archive - Andreas Tabak Collection, The Netherlands


P258 Joe Klawun No. 666/T
Joe Klawun No. 666/T - Closed simplex
Made in Germany (identical to Nestler 11-ZM) Feinmessinstitut Klawun
Front Scale (extended)
13cm // A [ B, C ] D
Back: Blank


ISRM Feinmessinstitut Klawun Aristo 0908 TriLog (1973)
Feinmessinstitut Klawun Aristo 0908 TriLog (dc3LR37)
Made in Germany by D&P for Klawun Feinmessinstitut Hanover
Front Scale
T1. T2, A [ B, BI, CI, C ] D, P, S , ST
Back Scale
LL1, LL2, LL3, DF [ CF, CIF, CI, C ] D, L, K
Multiple hairlines: PS, KW
Donated by Ted Hume, Texas


ISRM Joe Klawun No1001/S - System Klawun (Business Rule)

Der Rechenstab des Kaufmanns - System Klawun
Joe Klawun No1001/S - System Klawun (Business Rule)
Made in Germany by Albert Nestler for Feinmessinstitut Klawun
Front Scale (extended)
27cm // DF (KZ) [ CF (T), (CI) Val. (p%), (C) E (T) ] (D) V (Z) || 10 inch
Back Slide Scale: [ sh/d (-sh/d), £ (lg)]
Back : Instructions (German)
Note 1: Z = Zins (interest): K = Kapital (principal); p = Zinsfuss (interest rate); T = Tage (days).
Note 2: The DF/CF scales are folded at 3.6.
Note 3: At right end of back is a slogan: "Alles was Rechnen erleichtert liefert Klawun" Translated to English: "Klawun delivers everything that makes calculation easier."

Loga Daemon-Schmid, Zurich, Switzerland



REF Daemen-Schmid (Loga) 24 meter cylindrical
Daemen-Schmid (Loga) 24 meter cylindrical
Made in Switzerland by Daemon-Schmid 1915-1920
Paper faced aluminum drum
CD (100-1000) scales divided into 60 segments for a total length of 24 meter
Archive - Ed Chamberlain Collection
Galai Photo.


Ref Loga Calculator (Daemen-Schmid) 15 meter cylindrical
Loga Calculator (Daemen-Schmid) 15 meter cylindrical
Made in Switzerland by Daemon-Schmid


ISRM Loga (Daemen-Schmid) 7.5 meter cylindrical
Loga (Daemen-Schmid) 7.5 meter cylindrical
Made in Switzerland by Daemon-Schmid c1930


REF Loga (Daemen-Schmid) 7.5 meter cylindrical
Daemen-Schmid (Loga) 7.5 meter cylindrical
Made in Switzerland by Daemon-Schmid c1930
Archive - Ed Chamberlain Collection


ISRM Loga (Daemen-Schmid) 2.5 meter cylindrical
Daemen-Schmid (Loga) 2.5 meter cylindrical
Made in Switzerland by Daemon-Schmid c1930
Archive - Herman's Slide Rule Catalogue


REF Loga Slide Rule
Loga Slide Rule
Made in Switzerland - Paper and metal backing
Front Scale:
Zz(K1), A [ B, R, C ] D, Zz(K2)
Back Scale:
A [ B, R ] C, Currency Conversions
Archive Herman van Herwijnen's Slide Rule Catalogue


REF Loga Pocket Slide Rule
Loga Pocket Slide Rule
Made in Switzerland - Paper and metal backing
Front Scale:
K, A [ B, R, C ] D, Log
Back Scale:
A [ B, R ] C, Currency Conversions
Archive Herman van Herwijnen's Slide Rule Catalogue

Logarex



ISRM Logarex 27103 Rietz (early)
Logarex 27103 Rietz (early)
Made in Czechoslovakia - Bohemia Works
Front Scale
K, A [ B, CI, C ] D, log
Back Scale
4in, Ωmm2/m [ S, T] Constants, 10cm
Cursor: 4 hairlines: q, kW, d, PS
Donated by David Hecht, Alexandria, VA


P183 Logarex 27103 Rietz
Logarex 27103 Rietz
Made in Czechoslovakia - Bohemia Works
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
4in, Ωmm2/m [ S, T] Constants, 10cm
Cursor: 4 hairlines: q, kW, d, PS


ISRM Logarex 27203 Darmstadt Pocket
Logarex 27203 Darmstadt Pocket
Made in Czechoslovakia - Bohemia Works
Front Scale
12.5cm // P, K, A [ B, L, CI, C ] D, Sin, Tan
Back Scale
1:25 scale 3m [ LL1, LL2, LL3] Constants, 10cm
Cursor: 4 hairlines:
Donated by Richard Davis, Las Vegas Nevada


P171 Logarex 27204-II Rietz
Logarex 27204-II Rietz
Made in Czechoslovakia - Bohemia Works - Date 7-65
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
12.5cm [ S, S-T, T ] 5in, Equivalents
Cursor: 3 hairlines


P039 Logarex 27205 Exponent
Logarex 27205 Exponent - Duplex
Made in Czechoslovakia - Bohemia Works Toisen DOR
Front Scale (extended scales)
L, P, K, A [ B, CI, C ] D, tg, sin, s-t
Back Scale
LL1, LL2, LL3, DF [ CF, CIF, CI, C] D, LL00, LL01, LL02
Cursor: 3 hairlines: PS, KW, q, d


P115 Logarex 27302
Logarex 27302
Made in Czechoslovakia - Bohemia Works
Front Scale
15cm, P, K, A [ B, L, CI, C ] D, S, T
Back Scale
40mm(1:25) [ LL1, LL2, LL3 ] Table of Constants
Cursor: 4 hairlines


ISRM Logarex 27401-X Rietz
Logarex 27401-X Rietz
Made in Czechoslovakia - Bohemia Works
Front Scale (extended scales)
K, A [ B, CI, C ] D, L
Back Scale
Equivalents [ S, ST, T] Equivalents
Multiple hairline cursor: q, PS, KW, d
Donated by David Hecht, Alexandria, VA


ISRM Logarex 27403-X Darmstadt
Logarex 27403-X Darmstadt
Made in Czechoslovakia - Bohemia Works
Front Scale (extended scales)
L, P, K, A [ B, CI, C ] D, Sin, Tg, S-T
Back Scale
Equivalents [ LL1, LL2, LL3 ] Equivalents
Multiple hairline cursor: q, PS, KW, d
Original Location: Russia
Donated by Richard Davis, Las Vegas, Nevada


S339 Logarex 27403-II Darmstadt
Logarex 27403-II Darmstadt
Made in Czechoslovakia - Bohemia Works
Front Scale (extended scales)
25cm, L, P, K, A [ B, CI, C ] D, Sin, Tg, S-T || 1:25 7m
Back Scale
[ LL1, LL2, LL3 ]
Cursor: 4 hairlines: q, kw, d, PS
Has Previous Owner's Monogram on back


ISRM Logarex 27602
Logarex 27602
Made in Czechoslovakia - Bohemia Works - Toisen DOR
Front Scale (extended scales)
ST, P, K, A [ B, log, C ] D, Tg, Sin
Back Scale
LL1, LL2, LL3, DF [ CF, CI, C ] D, LL00, LL01, LL02
Cursor: 3 hairlines
Donated By Zdenka Novosad, Louisville, Colorado
Zdenka was given this slide rule by her boyfriend in her first year at university, a very expensive item at the time. She graduated with a masters degree in Czechoslovakia. She received a PhD. from the University of Pennsylvania (1975) and later became a Petroleum Engineer for Shell Canada Limited and was a member of the Society of Petroleum Engineers. One of her many papers, published in 1996 by the journal 'SPE Reservoir Engineering', was Composition and Phase Changes in Testing and Producing Retrograde Gas Wells and she wrote Spectroscopic and Magnetic Resonance Studies of Aromatic Molecules published by the Graduate School of Arts and Sciences, University of Pennsylvania, 1975. Currently retired and an active tennis player.


ISRM Logarex 27602-II Exponent
Logarex 27602-II Exponent
Made in Czechoslovakia - Bohemia Works - Toisen DOR
Front Scale (extended scales)
L, P, K, A [ B, CI, C ] D, S, T, ST
Back Scale
LL1, LL2, LL3, DF [ CF, CIF, CI, C ] D, LL00, LL01, LL02
Cursor: 3 hairlines: PS, KW, q, d


ISRM Logarex 27607-I Studio
Logarex 27607-I Studio - Duplex
Made in Czechoslovakia - TECHNIK, Bohemia Works Toisen DOR
Front Scale:
ST, T1, T2, DF [ CF, CIF, CI, C] D, P, S Cos
Back Scale (extended):
LL01, LL02, LL03 A [ B, L, K, C ] D, LL3, LL2, LL1
Cursor: 3 hairlines: PS, KW, q, d
Donated by Richard Davis, Las Vegas, Nevada

Meissner



REF Meissner KG Multi Pocket
Meissner KG Multi Pocket (1974)
Made in DDR/Germany - Same factory as Veb Mantissa
Front Scale
13cm // ST, A, DF [ CF, CIF, CI, C ] D, P, S, T
Back Slider (unverified): [ LL1, LL2, LL3, L ]
Cursor: multiple hairlines
Archive - Gerhard Wenzel collection (Netherlands)


REF Meissner KG Mono Rietz 731-541
Meissner KG Mono Rietz 731-541
Made in DDR/Germany - Same factory as Veb Mantissa
Front Scale
L, K, A[ B, CI, C ] D, S, T, ST
Back Slider (unverified): [ LL1, LL2, LL3, L ]
Archive - Courtesy of www.oldjurnal.narod.ru

Norden



P060 Norden-SKF
Norden-SKF
Made in Sweden
Front Scale
14cm // K, A [ B, CI, C ] D, L \\ sin cos
Back  Adv: SKF
Back Scale
[ Log, tg ctg, P ]

Reiss

Bad Liebenwerda, (East)Germany


P002 Reiss Pocket Simplex
Reiss Simplex
Made in Germany - brushed aluminum
Front Scale
13 CM // A [ B, C ] D
Back Scale
[ Sin, Log, Tg ]


Reiss 3201 Rietz-Spezial
Reiss 3201 Rietz-Spezial
Made in Germany - brushed aluminum
Front Scale
L, DF [ CF, CI, C ] D, DI
Back Scale (extended)
ST, T [ K, B, C ] S, P


REF Reiss 3209 Pocket Simplex
Reiss 3209 Simplex (1972)
Made in Germany - brushed aluminum
Front Scale (extended)
13 CM // K, A [ B, C ] D, L
Back Scale (not verified):[ Sin, S&T, Tg ]
Archive - Gerhard Wenzel collection


REF Reiss 3214 Darmstadt-Record
Reiss 3214 Darmstadt-Record
Made in Germany - Plastic
Front Scale (extended scales)
L, K, A [ B, CI, C ] D, LL1, LL2, LL3
Back Scale
P, S, ST, DF [ CF, CIF, CI, C ] D, T1, T2, DI
Cursor: 3 hairlines
Original owner: Sckerr Peter Schwerin
Photo contributed by Marion Moon


S198 Reiss 3236 Darmstadt
Reiss 3236 Darmstadt - Duplex
Made in Germany - Plastic
Front Scale (extended scales)
K, A [ B, CI, C ] D, L
Back Scale
P, S [ LL1, LL2, ll3 ] T1, T2
Cursor: 3 hairlines


ISRM Reiss Rietz
Reiss Rietz
Made in Germany - Plastic
Front Scale
13cm // K, A [ B, CI, C ] D, L
Back Scale
[ S, T]
Cursor: 3 hairlines
Donated by David Hecht, Alexandria, VA


ISRM Reiss Darmstadt DDR
Reiss Darmstadt DDR - Duplex
Made in East Germany - Plastic
Front Scale
K, A DF [ CF, CIF, CI, C ] D, P, S, T
Back Scale
[ LL1, LL2, LL3, L]
Cursor: 4 hairlines
Donated by David Hecht, Alexandria, VA


Reiss Darmstadt DDR
Reiss Darmstadt DDR
Made in East Germany - Brushed Aluminum
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
Cos, Sin/Tg [ LL1, LL2, ll3 ] sin, tg
Cursor: 4 hairlines


S038 Reiss Rietz
Reiss Rietz
Made in East Germany - Brushed Aluminum
Front Scale
K, A [ B, CI, C ] D, L
Back Slider
[ Sin, Arc, Tan ]
Cursor: 4 hairlines - PS, KW

Rista



S259 Rista Rietz 1
Rista Rietz 1
Made in  Germany - Plastic
Front Scale
K, A [ B, CI, C ] D, L
Back Slider
[ S, S&T, T ]
Cursor: 4 hairlines

Seehase, Dr. Ing.

Design based on German patent DE727007, 4 September 1939 by Dr. Ing. Hans Seehase.


P015 Dr. Ing. Seehase Pocket
Dr. Ing. Seehase Pocket - Advertising - c1950
Made in Germany
Front Scale
A [ B, C ] D
Back: Hardwick Hindle Inc. Resistors, USA


REF Dr. Ing. Seehase Pocket
Dr. Ing. Seehase Pocket - Advertising - c1950
Made in Germany
Front Scale
A [ B, C ] D
Back Scale: 5inch [] 13cm Back: Automotive Products Company, London.
Archive - Herman's Slide Rule Catalogue


REF Dr. Ing. Seehase - Elektro Praktikus
Dr. Ing. Seehase - Elektro Praktikus - c1950
Made in Germany - Alternating Current (power) Calculator
Front Scale
m [ A, V ][ qmm ] Cos (phase)
Back Scale:
qm [ Lx, Lp ][ Watt ] n (eta)
Note: two slides
Archive - Herman's Slide Rule Catalogue


REF Dr. Ing. Seehase - Träger-rechenstab
Dr. Ing. Seehase - Träger-rechenstab - c1950
Made in Germany - Structural Calculator
Front Scale
cm [ m, cm ] Kg/m2
Back Slide:
[ m, (nomograph), cm ]
Back: Reference Tables, Nomographs
Archive - Herman's Slide Rule Catalogue


REF Dr. Ing. Seehase - Sonderrechenstab SR 704
Dr. Ing. Seehase - Sonderrechenstab SR 704 - c1950
Made in Germany - Spring Design Calculator
Front Scale
Wire dia [ Radius of coil, Kg/cm2 ] P gramm (force)
Archive - Herman's Slide Rule Catalogue


REF Dr. Ing. Seehase - Sonderrechenstab SR 705
Dr. Ing. Seehase - Sonderrechenstab SR 705 - c1950
Made in Germany - Spring Design Calculator
Front Scale
Number of coils [Wire dia, Radius of coil][stress, P (force) Kg/cm2 ] f (Travel) mm
Note: Two slides
Archive - Herman's Slide Rule Catalogue

Skala



REF Skala Pocket Simplex
Skala Simplex (1973)
Made in Poland
Front Scale ()
15 CM // K, A [ B, CI, C ] D, L
Back Scale (not verified)
[ Sin, S&T, Tg ]
Archive - Gerhard Wenzel collection


REF Skala Electrical
Skala Electrical
Made in Poland
Front Scale ()
Efficiency, Volt, L, P, K, A [ B, CI, C ] D, LL3, LL2, sin cos, tg ctg, S-T
Back Scale (unknown)
Archive - Prof. Dr. Jörn Luetjens collection




GFT Staedtler Mars 54401 Darmstadt
Staedtler Mars 54401 Darmstadt - 1961
Made in Germany
Front Scale
10.5 // L, K, A [ B, CI, C ] D, P, S Cos, T Cot
Back Scale
Equivalents (english) [ LL1, LL2, LL3]
Donated by Russell Fox, Anchorgae, Alaska. Used by his father who purchased it in Germany 1961-1964. He worked as an Electrical Engineer with BPA in Portland, Oregon.


S093 Staedtler Mars 544LL
Staedtler Mars 544LL - Open Simplex
Made in Germany
Front Scale
L, K, A [ B, CI, C ] D, S, ST, T
Back Slider
25cm [ S, LL1, LL2, LL3] 10 inch


REF Staedtler Mars 544-28 Log Log
Staedtler Mars 544-28 Log Log - dc969 ( Sep 1969)
Made in Germany by Nestler (same as Nestler 0292)
Front Scale
P, S, T1, T2, A [ B, K, CI, C ] D, R1, R2, L, ST
Back Scale
LL00, LL01, LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1, LL0
Multilined Cursor: kW, HP
Archive - Larry Kehl collection


S548 Staedtler Mars 544-52 Log Log
Staedtler Mars 544-52 Log Log (Jan 1969)
Made in Germany - date code 169
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
25cm, S, ST, T, LL1, LL2, LL3, 10 inch
Multilined Cursor: kg/m, S, kW, HP


REF Staedtler-Noris 944-02
Staedtler-Noris_944-02 - Open simplex
Made in Japan
Front Scale
L, K, A [ B, CI, C ] D, S, ST, T
Back Scale 25cm [S, LL1, Ll2, Ll3 ] 10in
Archive - Not in Collection



S131 Staedtler-Noris 944-03
Staedtler-Noris_944-03 - Open simplex
Made in Japan
Front Scale
T1, T2, K, A [ B, CI, C ] D, S, ST, L
Back blank



ISRM Staedtler Mars 944-82 Log Log
Staedtler Mars 944-82 Log Log
Made in Japan
Front Scale
T1 (Cot1), T2 (Cot2), DF [ CF, CIF, S' (Cos), C ] D, (P), S (Cos), ST (ST)
Back Scale
LL0, L, K, A [ B, BI, CI, C ] D, LL3, LL2, LL1
Multilined Cursor: kW, HP
Donated by David Hecht, Alexandria, VA


P178 Staedtler-Noris 945-03
Staedtler-Noris_944-03 - Closed
Made in Japan
Front Scale
5in // K, A [ B, CI, C ] D, L
Back scale: [ S, ST, T ]


Standardgraph



REF - Standardgraph No. 910 Disco-Rietz
Standardgraph No. 910 Disco-Rietz
Made in West Germany c1960 - 12.8cm diameter
Front Scale - L, CI, C ( D, Sin Cos, Tg Ctg, R)
Archive - Scan donated by John Krijnen, Netherlands


TEKNOR

Not much is known about this brand of slide rule, and whether or not it was distributed out of the USA, UK or Europe. The specimen shown in this gallery was obviously made in Japan by Uchido Yoko, Co (was Hemmi) which mas an OEM for re-branded slide rule catalog distributors. Other re-branded models with the Teknor label were made by UTO in Denmark such as the UTO 930U Poly-e. An ebay search reveals these other models:
TEKNOR NO.1055 Grundskola (Elementary School in Swedish) Slide Rule
TEKNOR No.1061 Högstadium (High School in Swedish) Slide Rule
So the distributor is determined to have been in Sweden.

Need TEKNOR No.1055 Grundskola Slide Rule or image
Need TEKNOR No.1061 Högstadium Slide Rule or image


ISRM TEKNOR No.1081 Gymnasium
TEKNOR No.1081 Gymnasium
Made in Japan for Swedish Distributor TEKNOR (by Uchida Yoko, Co)
Note: Exactly the same as Technical Sales 1081 TechLog Emblem Series
Front Scale
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale
T2, T1, ST, DF [ CF, CIF, CI, C ] D, P, S Cos
Cursor: Multiple Hairlines
Donated by Richard Davis, Las Vegas, Nevada


VEB Electro-Apparate-Werke (EAW)



ISRM VEB Electro-Apparate-Werke (EAW) Pocket
Veb VEB Electro-Apparate-Werke (EAW) Pocket- c1946
Made by Berlin-Treptow, DDR Germany - wood stock with plastic laminate
Front Scale
13cm // K, A[ B, CI, C ] D, L
Back Scale: [ sin, sin/tg, tg ]
Donated by David Hecht, Alexandria, VA
Note: VEB Electro-Apparate-Werke, later renamed Berlin-Treptow, was a public owned company founded in 1928 by Friedrich Ebert and made radios, relays and control equipment. Berlin-Treptow was one of the largest manufacturers of electric appliances in the GDR and had 8,000 employees. After Stalin's death the factory was renamed EAR JW Stalin. The company was privatized in 1993.





P107 Veb Mantissa Multi Pocket
Veb Mantissa Multi Pocket - Closed simplex
Made in DDR/Germany
Front Scale
13cm // ST, A, DF [ CF, CIF, CI, C ] D, P, S, T
Back Slider: [ LL1, LL2, LL3, L ]
Cursor: 3 hairlines


S059 Veb Mantissa Mono Rietz 1731-541
Veb Mantissa Mono Rietz 1731-541 - Simplex
Made in DDR/Germany
Front Scale
L, K, A [ B, CI, C ] D, S, T, ST
Back Slider: Blank
Cursor: 3 hairlines


S200 Veb Mantissa 1731-511 Rietz
Veb Mantissa 1731-511 Rietz - Duplex
Made in DDR/Germany
Front Scale
K, A [ B, CI, C ] D, L
Back Scale: [ S, ST, T ]
Cursor: 3 hairlines


S163 Veb Mantissa Darmstadt II 1731 523/4
Veb Mantissa Darmstadt II 1731-523/4
Made in DDR/Germany
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
P, ST [ LL1, LL2, LL3] D, T, S


REF Veb Mantissa Record 1731-421
Veb Mantissa Record 1731-421
Made in DDR/Germany
Front Scale
L, K, A [ B, CI, C ] D, LL1, LL2, LL3
Back Scale
P, S, ST, DF [ CF, CIF, CI, C ] D, T1, T2, DI
Archive - Not in Collection


ISRM Veb Mantissa Mono Rietz 1731 541
Veb Mantissa Mono Rietz 1731 541
Made in DDR/Germany
Front Scale
L, K, A [ B, CI, C ] D, S, T, ST
Back: Blank


REF Veb Mantissa Trim LL 1731-433
REF Veb Mantissa Trim LL 1731-433
Made in DDR/Germany
Front Scale
P, S, K, A [ B, L, CI, C ] D, T1, T2, DI
Back Scale
LL01, LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1
Archive - Rod Lovett Collection

Gebr. Wichmann (Wichmann Brothers)



REF Gebr, Wichmann 431
Gebr. Wichmann 431 c1900
Made in Berlin, Germany by Wichmann Brothers - Paper composite with brass chisel cursor
Front Scale
A [ B, C ] D
Back: Blank
Archive - Ed Chamberlain Collection


REF Gebr. Wichmann 466
Gebr. Wichmann 466 c1900
Made in Berlin, Germany by Wichmann Brothers - Paper composite with brass chisel cursor
Front Scale
A [ B, C ] D
Back: Blank
Archive - Ed Chamberlain Collection


REF Gebr. Wichmann 1327-1/2
Gebr. Wichmann 1327-1/2
Made in Germany by Gebr. Wichmann m.b.h. (Wichmann Brothers)
Front Scale
A [ B, C ] D
Archive - Herman van Herwijnen's SR Catalogue


REF Wichmann 4428
Gebr. Wichmann 4428
Made in Germany by Gebr. Wichmann m.b.h. (Wichmann Brothers)
Front Scale
A [ B, C ] D
Back scale: 27.2cm [S, L, T ] 10.75in
Archive - Scan provided by Mark D. Sutton

Wolters-Noordhoff



REF Wolters-Noordhoff Rietz 87
Wolters-Noordhoff Rietz 87
Made in Japan (Fuji) for Dutch Company
Front Scale
K, A [ B, CI, C ] D, L
Back Slide
0-15cm, 15-0cm [ S, T, T1 ]
Archive - Herman van Herwijnen's SR Catalogue


S062 Wolters-Noordhoff FJ102
Wolters-Noordhoff FJ102 - Simplex
Made in Japan (Fuji) for Dutch Company
Front Scale
L, DF [ CF, CIF, CI, C ] D, A, K
Back Slide
25cm [ S, ST, T1, T2 ]
Cursor: 3 hairlines


REF Wolters-Noordhoff 112
Wolters-Noordhoff 112
Made in Japan by Fuji
Front Scale
L, DF [ CF, CIF, CI C ] D, A, K
Cursor: 3 hairlines: PS, KW, C
Back Scale
25cm [ S Cos, ST
, T1 Cot1, T2 Cot2 ]
Archive - Rod Lovette Collection


REF Wolters-Noordhoff JE650
Wolters-Noordhoff JE650 - Duplex
Made in Germany for Dutch Company
Front Scale
A, DF [ CF, CIF, CI, C ] D, K
Back Scale
L, T1 Cot1, T2 Cot2 [ S', CI, C ] D, S Cos, ST
Cursor: 3 hairlines
Archive - Herman van Herwijnen's SR Catalogue


S063 Wolters-Noordhoff 1200
Wolters-Noordhoff 1200 - Duplex
Made in DDR/Germany
Front Scale
T1 Cot1, T2 Cot2, A [ B, BI, CI C ] D, P, S Cos, ST
Back Scale
LL1, LL2, LL3, DF [ CF, CIF, CI C ] D, L, K
Cursor: 3 hairlines: PS, KW, C

Zulaica y Cia



REF Zulaica Stilus
Zulaica Stilus (c1930)
Made in Spain by Zulaica y Cia S.R.C., Zarauz, Guipuzcoa, Basque region
Front Scale
A [ B, CI, C ] D
Back
Equivalents and constants
Archive - Herman van Herwijnen's SR Catalogue

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