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Title: Circular button of brown cast phenolic, pierced centrally wi [Go to resource]
Description: Circular button of brown cast phenolic, pierced centrally with two holes, mid 20th century? License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1930-1960 Source: Science Museum Identifier: 1980-676/224 Go to resource More Like this...
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