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Title: Tessar patent lens [Go to resource]
Description: Tessar patent lens F.4.5 6 inch f.l. in a rigid mount and a ring type iris diaphragm. Ross, c.1920. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: lens Temporal: c.1920 Source: Science Museum Creator: Ross Identifier: 1979-559/1230 Go to resource More Like this...
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