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Title: Small brass screw embedded in a knob made of phenol formalde [Go to resource]
Description: Small brass screw embedded in a knob made of phenol formaldehyde, 1920-1940 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: Screw fitting Temporal: 1920-1940 Source: Science Museum Identifier: 2005-326 Go to resource More Like this...
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