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2 ½-inch Reflecting Telescope, late 18th Cent...
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6-Draw Scottish Pocket Telescope by Bell, c. ...
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English Surveying Level Instrument by Trought...
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Marine Pocket Telescope by Krüss, c. 1870...
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Drum Microscope by Oberhäuser and a Brass Tel...
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Miniature Telescope, 18th Century...
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French Graphometer by Bernier, Paris, c. 1780...