Skinner

Auctioneers and Appraisers

Brass Graphometer

Auction:
2502
Lot:
711
Sold for:
$207$175

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

Description:

Brass Graphometer, unmarked, the 3 in. radius half circle divided 0-180 degrees in two complimentary scales, the alidade with two verniers marked 0-30 minutes, mounted sighting vanes and recessed compass with printed paper card and steel pointer, ht. 7 1/2 in.
Estimate $300-600

Keywords

steel pointer, Alidade, Circle, Compass, Graphometer, Measuring instruments, Orientation, Orienteering, Qibla compass