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Title: Twin lens test camera 3 1/2 x 2 1/2 with roll film back and [Go to resource]
Description: Twin lens test camera 3 1/2 x 2 1/2 with roll film back and Ross Symmetrical Anastignat 6" f8 lenses, Nos. 60123 and 60311, with stops; all in carrying case, c. 1940. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1940 Source: Science Museum Identifier: 1976-536 Go to resource More Like this...
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