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Americas Slide Rule Gallery
Mexico, Central and South America.

This page contains slide rules from the Americas - South America (Argentina, Brazil, etc), Mexico, and any other place that doesn't fit in the other galleries.

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Alba



REF Alba Calcurregla
Alba Calcurregla
Made in Mexico
Front Scale
A [ B, T CI, C ] D, K, L
Back scale: Flippable Cursor
S, T, ST, D, LL3, LL2, LL3
Archive - Herman' van Herwijnen's SRC

La Casa "Calpini", S.A. Mexico City


In 1848 was born in Mexico, DF House Calpini, establishment engaged in the trade of optical instruments, engineering, drawing, scientific and items of the field, being the first establishment that is dedicated to market optical goods, fit and specialized.From Italian origin, the founder of Casa Calpini, Javier Calpini, used his experience and knowledge of the product to introduce it into Mexico, importing it from Europe using finished glasses and to determine the graduation the person was needed, I use the system of trial and error, since the scientific instruments of Measurement and diagnosis subsequently appeared.
Note: Calpini is to Mexico what Lutz Ferrando is to Argentina


Calpini 4565 Log Log Duplex

REF
Calpini 4565 Log Log Duplex
Made in Mexico - Calpini MarcasReg (Trademark)
Front Scale
K, DF [ CF, CIF, CI, C ] D, L
Back scale (Best Guess): S, T, A, [ B, CI, C ] D, LL1, LL2, LL3
Archive - Ebay Photo


Calpini 6855 Duophase (Diwa 601)
ISRM 20.04.01.285
Calpini 6855 Duophase (Diwa 601)
Made in Denmark by Diwa Rebranded DIWA No.601 Pocket Rietz for Calpini
Front Scale
11cm, 4.5in // K, A [ B, CI, C ] D, L
Back scale: [ S, ST, T ]
Gift Of Philip Stanley Collection


Calpini 6863 Multiphase (Diwa 851/4)
ISRM 20.04.01.405
Calpini 6863 Multiphase (Diwa 851/4)
Made in Denmark by Diwa Rebranded DIWA No.851/4 Pocket Duplex Darmstadt for Calpini
Note: Interesting shape of linear slcale edge. Unique to this maker. Front Scale
K, A [ B, CI, C ] D, P \\ 11cm, 4.5in
Back scale: L, S [ LL1, LL2, LL3 ] D, T
Gift Of Philip Stanley Collection


Calpini Pocket (rebranded Bruning 2401)
REF
Calpini Pocket (Bruning 2401)
Made in USA by Charles Bruning Co. rebranded for Calpini (Trademark)
Front Scale
12.5cm // A [ B, CI, C ] D, K \\ 5in
Back Scale: [S, L, T ]
Back Blank
Archive - Ebay Photo

Regla De Calculo "JAM"



REF JAM Model A.1
JAM Model A.1
Made by Industria Argentina, Buenos Aries, Argentina
Front Scale (Extended)
15cm // A [ B, C ] D || 5in
Well: 20-33cm
Back scale: [ Sin, Sin & Tan, Tan ]
Back: Equivalents (Spanish)
Archive - Guillermo Castarés collection (Argentina)


REF JAM Model A.2-3
JAM Model A.2-3
Made by Industria Argentina, Buenos Aries, Argentina
Front Scale (Extended)
30cm // K, A [ B, CI, C ] D, L || 10in
Well: 32-61cm
Back scale: [ Sin, Sin & Tan, Tan ]
Back: Equivalents (Spanish)
Archive - Guillermo Castarés collection (Argentina)

Kepler



Kepler 1015 Pocket Slide Rule (Simplex version)
ISRM 19.01.11.01
Kepler 1015 Pocket Slide Rule
Made by Industria Argentina, Buenos Aries, Argentina
Front Scale:
Sin, Tan, A [ B, CI, C ] D, K, L
Back: Blank
Back Promo: Felgra, Una Garantia en Textos Universitarios .


Kepler 1015 Duplex

REF
Kepler 1015 (Duplex Version)
Made by Industria Argentina, Buenos Aries, Argentina
Note: Its interesting that this duplex (two sided) slide rule has the same model number as the above Simplex. The front has the same scale set.
Front Scale:
Sin, Tan, A [ B, CI, C ] D, K, L
Back scale:
P, ST, DF [CF, CIF, C] D, LL3, LL03
Markings: Hirschberg S.A.
Archive - Guillermo Castarés collection (Argentina)

O.K.E.



REF O.K.E. El Disco Calculador
O.K.E. El Disco Calculador
Made by Industria Argentina, Buenos Aries, Argentina
Front Scale (Extended)
D, L, A, K, S, T
Back: Equivalents (Spanish)
Archive - Guillermo Castarés collection (Argentina)
Instructions 800KB PDF)

Archimedes (Industria Brasileira)



Archimedes Log Log Marca Registrada

ISRM 17.05.02.31
Archimedes Log Log Marca Registrada
Made in Rio de Janeiro, Brazil, (Brasiil)
Note: Railroad Track Scales
Front Scale (Extended): 27cm L // K, A [ B, CI, C ] D, P || S, T
Back Scale (Extended): [ ex1.01-1.12, ex1.1-3. ex2.7-105 ]
Gift of Mike Weaver, UK


REF Archimedes Latt-Mayer S.A. 42-8125 Circular Slide Rule
Archimedes Latt-Mayer S.A. 42-8125 Circular Slide Rule
Made by Latt-Mayer S.A., Rio De Janeiro. Approximately 5cm in diameter.
Front Scale
C (D)
Back: Promotion of Latt-Mayer product line (Portugese)
Archive - Photo by João Roberto Gabbardo collection, Brazil


REF Archimedes Universal
Archimedes Universal
Made in Rio de Janeiro, Brazil,
Front Scale (Extended)
15cm // K, A [ B, CI, C ] D, L
Back scale: [ Sin, Sin & Tan, Tan ]
Back: Archimedes Logo/Conversions
Multi-hairlined cursor
Archive - João Roberto Gabbardo collection (Brazil)


REF Archimedes 11-C Style 1
Archimedes 11-C Style 1
Made in Rio de Janeiro, Brazil,
Front Scale (Extended)
13cm // K, A B, CI, C ] D, L
Back Scale (Extended):
[ S, ST, T ]
Archive - João Roberto Gabbardo collection (Brazil)


REF Archimedes 11-D Universal
Archimedes 11-D Universal
Made in Rio de Janeiro, Brazil,
Front Scale (Extended)
K A [ B, CI, C ] D, L
Back Scale (Extended)
S, DF [ CF, CIF, C ] D, ST, S
Archive - João Roberto Gabbardo collection (Brazil)


REF Archimedes 11-DL Tecnolog
Archimedes 11-DL Tecnolog
Made in Rio de Janeiro, Brazil,
Front Scale (Extended)
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale (Extended)
ST, T1, T2, DF [ CF, CIF, CI, C ] D, P, S
Archive - João Roberto Gabbardo collection (Brazil)


REF Archimedes 11-DL Tecnolog Style 2
Archimedes 11-DL Tecnolog
Made in Rio de Janeiro, Brazil,
Front Scale (Extended)
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale (Extended)
ST, T1, T2, DF [ CF, CIF, CI, C ] D, P, S
Archive - João Roberto Gabbardo collection (Brazil)


REF Archimedes_12-C_Universal
Archimedes_12-C_Universal
Made in Rio de Janeiro, Brazil,
Front Scale (Extended)
15cm // K, A [ B, CI, C ] D, L \\ 6in
Back scale: [ Sin, Sin & Tan, Tan ]
Multi-hairlined cursor
Archive - João Roberto Gabbardo collection (Brazil)


REF Archimedes 12-C Style2
Archimedes 12-C Style2
Made in Rio de Janeiro, Brazil,
Front Scale (Extended)
15cm // K, A [ B, CI, C ] D, L \\ 6in
Back scale: [ Sin, Sin & Tan, Tan ]
Multi-hairlined cursor
Archive - João Roberto Gabbardo collection (Brazil)


REF Archimedes 13-C Universal
Archimedes 13-C Universal
Made in Rio de Janeiro, Brazil,
Front Scale (Extended)
27cm // K, A [ B, CI, C ] D, L \\ 10.5in
Back scale: [ Sin, Sin & Tan, Tan ]
Multi-hairlined cursor
Archive - João Roberto Gabbardo collection (Brazil)


REF Archimedes Concreto
Archimedes Concreto
Made in Rio de Janeiro, Brazil,
Front Scale (Extended)
27cm // K, A [ B, X, h, Sfe, C ] D, L|| 10.5in
Back scale: [ Sin, Sin & Tan, Tan ]
Back: Concrete Volumn guide/Conversions
Multi-hairlined cursor
Archive - João Roberto Gabbardo collection (Brazil)

Lutz Ferrando y Cia, S.A. (Lutz Ferrando and Company)
Buenos Aires, Brazil

Founded in 1878 by Leopoldo Schnbabl. The optician specialized in ophthalmic optics first at 101 Florida Street and then, in 1900, it moved to 171 Florida Street under the name Lutz and Schulz. In 1912 the premises on Florida Street 240 were inaugurated with a new name Lutz Ferrando SA. Those were the beginnings of the name Lutz Ferrando as an optician specialized in ophthalmology that today has new specialties related to vision such as contactology, low vision, meteorology and audiology accessories. At one point they sold cameras and slide rules (reglas de calculo) as part of their accessory line. They offerred K&E, Diwa, Nestler, and rebranded Hemmi's as well, as in the specimen below.


Lutz Ferrando Hemmi 64 (Nestler Eqivalents slip)

ISRM 17.05.02.31
Lutz Ferrando Hemmi 64 (Nestler Eqivalents slip) c1932-1968
Distributed by Lutz, Ferrando and Cia. S.A., Buenos Aires, Brazil, (Brasil)
Note: Railroad Track Scales, No scale labels
Front Scale (Extended): 27cm // K, A [ B, CI, C ] D, L || 10in
Back Scale: [ S, S&T, T ]
Back: Nestler Equivalents slip in Portugese
Note: Ricoh cursor

Plastograf



REF Plastograf
Plastograf
Made in Sao Paulo, Brazil,
Front Scale (Extended)
14cm // K, A [ B, CI, C ] D, L
Back scale: [ Sin, Sin & Tan, Tan ]
Back Adv: Aero-Mechanica Darma, Ventilacao Industrial
Archive - João Roberto Gabbardo collection (Brazil)


REF Plastograf Academica
Plastograf Academica
Made in Sao Paulo, Brazil,
Front Scale (Extended)
K, A [ B, CI, C ] D, L
Back scale: [ Sin, Sin & Tan, Tan ]
Archive - João Roberto Gabbardo collection (Brazil)


REF Plastograf Standard
Plastograf Standard
Made in Sao Paulo, Brazil,
Front Scale (Extended)
14cm // K, A [ B, CI, C ] D, L
Back scale: [ Sin, Sin & Tan, Tan ]
Archive - João Roberto Gabbardo collection (Brazil)


REF Plastograf Trident Super 22
Plastograf Trident Super 22
Made in Sao Paulo, Brazil, Industria Brasileir
Front Scale (Extended)
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale (Extended)
Cot T, ST, DF [ CF, CIF, CI, C ] D, P, S Cos
Archive - João Roberto Gabbardo collection (Brazil)

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