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Title: Eyelet selector chart in slide-rule format, made 1959 by Per [Go to resource]
Description: Eyelet selector chart in slide-rule format, made 1959 by Perrygraf, Illinois for United Shoe Machinery Corporation, Massachusetts License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: United Shoe Machinery Corp. Perrygraf Identifier: 1985-254 Go to resource More Like this...
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