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Title: "Arithmograph" of Leon Bollee, with stylus, instructions for [Go to resource]
Description: "Arithmograph" of Leon Bollee, with stylus, instructions for use and sets of mathematical tables printed on two cards, together with a tin mask, 2" x 1 3/8" License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: calculating machine Temporal: 1895-1900 Source: Science Museum Creator: Bollee, Leon Identifier: 1936-192 Go to resource More Like this...
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