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Title: [Go to resource]
Description: White metal testing frames, lorgnette type with looped handle, semi-circular cells for lenses, bridge expands to give horizontal movement, English(?), 1900-1930 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: trial frames Temporal: 1900-1930 Source: Science Museum Identifier: A680909 Go to resource More Like this...
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