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Title: symmetrical lens [Go to resource]
Description: Symmetrical lens in a brass mount. With no iris diaphragm. Mangay, c.1880 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: symmetrical lens Temporal: c.1880 Source: Science Museum Creator: Mangay Identifier: 1979-559/1361 Go to resource More Like this...
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