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Title: Model 13ZK twin Brunsviga Calculating machine (13 register), [Go to resource]
Description: Model 13ZK twin Brunsviga Calculating machine (13 register), by Grimme, Natalis and Company, Braunschweig, Germany, Serial No.223265, c. 1935. Consisting of a pair of 10 digit calculators coupled together. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: calculating machine (pinwheel) Temporal: 1936-1939 Source: Science Museum Creator: Grimme, Natalis and Company Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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