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Title: Glass colour positive, by Barnhard Baer, "Potsdam" 1935 [Go to resource]
Description: Glass colour positive, by Barnhard Baer, "Potsdam" 1935. Backed with pearl glass, mounted with black paper tape License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1985-5165 Go to resource More Like this...
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