White and Gillespie Dualface 432, Australia
White and Gillespie Dualface 476, Australia
Plastograf Academica, Sao Paolo, Brazil.
BEK, Sofia, Bulgaria.
KNP-57, Navigational Calculator and Slide Rule, Sofia, Bulgaria.
UKG, RPGP, Sofia, Bulgaria.
Ruyi 1015-1, China
Logarex 27205, Czechoslovakia.
Logarex 27401-X Rietz, Czechoslovakia. Sourced from Bulgaria.
Logarex 27402-X Elektro, Czechoslovakia.
Logarex 27403-III, System Darmstadt, Czechoslovakia. Sourced from Bulgaria.
Logarex Toison D'Or (Golden Fleece in French) 27602-II, Exponent, Czechoslovakia
Logarex Skrivab Trig 27606 Czechoslovakia
Uto 601, Denmark
Uto Electro 611, Denmark
Uto 661, Denmark.
Diwa 101, Denmark
Diwa 141, Denmark.
Diwa 301, Denmark
Diwa 361, Denmark
Diwa 561, Denmark
Diwa 701, Denmark
Diwa 901, Denmark.
Kingson Accurator Four Rule, Hong Kong
Kingson Pocket Calculator, Four Rule,with Pounds, Shillings and Pence Addiator. Hong Kong
Gamma Budapest 1252 Hungary
Logar Thermotechn. 1512, MSZ 4617-57, Hungary
Deeva 601, Bombay, India. Sourced from Uruguay.
Perfection, No.555, Robust, B.R.M Pattern, Scura, B.S.M., Fort, Bombay, India.
Brev. E.Calamari, Italy. Brev. stands for brevetto or brevettato meaning patent or patented. Scales 23cm//lung.m,C[[D,Volt[Kw,ρ=Ωmm²/m(Resistivity),mm²]lung.m,W/cm²]]Kw,A where lung is short for lunghezza, length. Ω is Resistance in Ohms. This example has lost its single cursor which should have three cursor lines
Marcantoni No.12.5RB, Italy
Regolo Mignon Tecnostyl, Italy. This is an example of the simplest type of slide rule; just two scales one sliding against the other. Other examples in this collection are the Hemmi 22 and the Blundell S.141.
Tecnostyl 40/D, Italy.
Tecnostyl ST41, Italy.
Skala SLPP 270332,Poland
Tehnolemn Timisoara, Romania
LSLO-250-10P, Russia
GOST 5161-57, 1966, F-KA Schyetnich Priborov Leningrad
GOST 5161-72, 1978, Leningrad
NL-9, Russia
NL-10M, Russia
Artillery Rule, Russia
USL-12, A slide rule with 2 Slides. Russia
Atlas Copco Slide Rule, Sweden
KLPZ LSLO-20-11, Ukraine
