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French calculating machine. Late-18th century calculating machine from France. The machine consists of a series of six rotating cylinders marked with numbers, and a grid for adding numbers in the hinged lid. Roman numerals at right mark the nine levels of numbers on the cylinders. This type of calculating machine is known as a rotary calculator, and operates in a similar way to an abacus, achieving multiplication by repeated addition.
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Details
Creative#:
TOP03226926
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
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