@mis@

A FEW EXPOSITION PIECES

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For the occasion of the expositions organized by the AMISA, more than one hundred collection pieces were displayed. Here are a few of the pieces, among the most ancient and most important.

Qipu(13th century)*

Roman Abacus(2nd-5th centuries)*

Stchoty counting frame(18th century)

Caze's machine(1720)*

Webb's adding machine(1889)*

Eureka(1890)

Michel Rous' abacus(1869)*

La Multi,Napieran cylinders(1920)

Blitz's calculating circle(1895)*

Schickard's machine(1623)

Pascaline(1642)

Leibniz's machine(1694)

Poleni's machine(1709)

Eclair(1912)

Comptometer by Felt and Tarrant(1903)

Hollerith's machine(1890)*

Gamma 3 calculator(1951)

* pieces of AMISA