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Title: 'Porro' type optical system taken from field glass binoculars [Go to resource]
Description: 'Porro' type optical system with modified cemented 'Porro' glass prisms and cemented magnifying eye-piece field-lens, taken from (7 x 50) field glass binoculars by Barr and Stroud Limited, Glasgow, Scotland, 1930-1950. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: Porro�Abbe prism
component - objectTemporal: 1930-1950 Source: Science Museum Creator: Barr and Stroud Limited Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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