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Title: 'Wellcome' photographic exposure calculator, handbook and diary for 1924 [Go to resource]
Description: 'Wellcome' photographic exposure calculator, handbook and diary for 1924, from collection of miscellaneous dark room equipment License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1974-257/17 Go to resource More Like this...
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