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Protracting Circumferentor or Theodolite by Georges Varney

Auction:
2345
Lot:
104
Sold for:
$2,938$2,500

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Auction:
Clocks, Watches & Scientific Instruments - 2345
Location:
Boston
Date / Time :
July 29, 2006 10:00AM

Description:

Protracting Circumferentor or Theodolite by Georges Varney, Newburyport, No. 32, stamped Geo. D. Varney, Patd. June 24. 1843, of lacquered brass, with 5-inch dia. unscaled compass, blued-steel needle on clamp, rotating compass box with periphery silvered scale divided 0-90° in four quadrants, the compass box supporting a detachable geared vertical hoop with horizontal vernier and index, vertical silvered vernier scale divided 45-0-45° and 12 1/2-inch lg. telescope with vial and sights, on four-screw leveling base and optional (added ?) staff-mount, ht. level 9 1/2 in., in velvet-lined fitted wood case.

Note: Patent No. 3,147 was granted to George D. Varney of Newburyport, Massachusetts, on June 24 1843. Copies of the patent are included with the instrument.
Estimate $400-600

Keywords

Newburyport, Georges Varney, blued-steel needle, George D. Varney, Massachusetts, Circumferentor, Compass, Measuring instruments, Newburyport, Massachusetts, Theodolite, Vernier scale, Vernier, Switzerland