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Russian Balloon Theodolite by Aerogeopribor, ...
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Second Theodolite Theo 010 by Zeiss, c. 1965...
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Theodolite by Hildebrand, c. 1920...
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Askania Recording Pilot Balloon Theodolite, c...
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3 Askania Werke Surveying Instruments...
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Large Swiss “Wild T3” Theodolite, 1969...
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Negretti & Zambra Miner's Dial, c. 1890...
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Rare German Theodolite by Christmann, c. 1880...
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English 'Everest-Pattern' Theodolite by Troug...
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Precision Theodolite by Carl Bamberg, c. 1880...
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Transit Theodolite by Carl Bamberg, c. 1880...
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Levelling Instrument by Hildebrand, c. 1890...
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Celestron C8 Schmidt-Cassegrain Telescope...
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Brass Refracting Telescope by Fraunhofer, c. ...
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Refractor Telescope by Carl Bamberg, c. 1885...
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Steinheil Optik 8 x 40 Luxury Binoculars, c. ...
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W. Ottway & Co. Ltd Military Telescope, c. 19...
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Sextant by Carl Bamberg, c. 1910...
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English Two-Day Survey Chronometer by Thomas ...
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Arnold's Patent Calcium Gas Making Outfit, c....
