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Title: Binocular bifocal periscope, type CK [Go to resource]
Description: Binocular bifocal periscope, type CK. 11 number 272, made by Barr and Stroud Ltd, comprising the following four parts License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Barr and Stroud Limited Identifier: 1958-240 Go to resource More Like this...
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