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Title: Photograph. Leon Bollee operating his calculating machine. c [Go to resource]
Description: Photograph. Leon Bollee operating his calculating machine. c1890 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: photograph
portraitTemporal: 1890 Source: Science Museum Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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