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Brass Bridge Frame Sextant by Troughton

Auction:
2502
Lot:
520
Sold for:
$1,422$1,200

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Auction:
Clocks, Watches & Scientific Instruments - 2502
Location:
Marlborough
Date / Time :
May 01, 2010 10:00AM

Description:

Brass Bridge Frame Sextant by Troughton, London, No. 1302, the lacquered brass frame and wooden handle with 9-inch limb, inlaid silver scale calibrated 0-145 and silver vernier with magnifier on 3-inch adjustable arm, telescope attachment with additional eyepieces and horizon and sun shades in a fitted mahogany box with recessed carrying handles, brass plate inscribed R. Birch, R.N. and National Physical Laboratory inspection card dated 14th of January, 1926, inside the lid.
Estimate $400-600

Age consistent discoloration on lacquered brass, most components still with the instrument.

Keywords

London, R. Birch, National Physical Laboratory, Bed, Brass, Brass instruments, Celestial navigation, Measuring instruments, Sextant