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Title: Two diam, virtual image telescope (aero machine gun sight) G [Go to resource]
Description: Two diam, virtual image telescope (aero machine gun sight) German by orgel, Berlin ( damaged) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: telescope - refracting Source: Science Museum Identifier: 1925-438 Go to resource More Like this...
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