Calculators Collection

M. I. T. Calculator 1930S
The Differential Analyser calculating machine designed at Massachusetts Institute of Technology

Peruvian Quipu
A quipu of ancient Peru

THOMAS ARITHOMETER 1851
Thomas Arithometer. Date: 1851

ODHNERS CALCULATOR 1904
Odhners calculator. Date: 1904

MEXICAN QUIPU (1857)
A quipu of ancient Mexico

Tubular Slide Rule
OTIS KING TUBULAR SLIDE RULE a mechanical calculating devise using addition & subtraction of logarithms to simplify division and multiplication Date: circa 1960

Pascals Calculator
PASCAL Pascals calculating machine

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