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Title: Diagonal Spy Glass (Jealousy glass [Go to resource]
Description: Diagonal Spy Glass (Jealousy glass, c.1770), black ivory with white metal bands on body, 2 eyepieces, in shaped sharkskin case License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1770 Source: Science Museum Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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