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Title: Photograph (1/4 plate bromide print) and one drawing from ab [Go to resource]
Description: Photograph (1/4 plate bromide print) and one drawing from above, Lafleur and Roulot's patent binocular opera glass, 1873 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1924-290 Go to resource More Like this...
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