现场拍卖 12051旅游、科学及自然历史
MCFARLANE'S CALCULATING CYLINDER
拍品 239

MCFARLANE'S CALCULATING CYLINDER

SCOTTISH, CIRCA 1835

已结束2016年4月21日

估价

GBP 2,000–3,000

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MCFARLANE'S CALCULATING CYLINDER
SCOTTISH, CIRCA 1835
the composed of three rotating sections with printed paper scales, cartouche signed McFARLANE'S CALCULATING CYLINDER. GLASGOW.
6in. (15cm.) long

专家说明

This slide rule in the form of a cylinder would have been used to determine interest for fiscal calculations. Other examples are known in the collections of IBM and the Science Museum in London.