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2 Monocular Opera Glasses...
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3 Monocular Opera Glasses...
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4 Fine Monocular Opera Glasses...
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2 Brass Spy Glasses...
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2 Interesting Spy Glasses, 19th Century...
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2 Gold-Plated French Spy Glasses...
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Rare Venetian Single-Draw Telescope, c. 1750...
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Single-Draw Telescope with Ribbed 18 k Gold M...
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Rare Silver-Plated 5-Draw Spy Glass by Lerebo...
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2 Fine Monocular Opera Glasses...
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Gilt-Brass Spy Glass Telescope, 19th Century...
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Extremely Rare Gilt-Brass Opera Spy Glass, c....
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6-Draw Gilt-Brass Monocular Telescope, 19th C...
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Taxidermy Study under Glass Dome, c. 1890...
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2 European Taxidermy Displays, c. 1920...
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"Magazin aller neuen Erfindungen, Entdeckunge...
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French Galvanometer by Carpentier, c. 1880...
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Rotax Mercury-Jet Interrupter, c. 1920...
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2 Physical Demonstration Tubes, c. 1920...
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Leica "Oberfl.-Messgerät", 1946...
