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Title: Parker's Prestometer Tablet, mid 19th century [Go to resource]
Description: Calculating Rule 'Parker's Prestometer Tablet', c.1860 by Isaac Aston, London. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: ready reckoner Temporal: mid 19th century Source: Science Museum Creator: Isaac Aston Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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