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Cleaver Improved Protractor by William J. Young & Sons

Auction:
2502
Lot:
710
Sold for:
$1,185$1,000

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

Description:

Cleaver Improved Protractor by William J. Young & Sons, Philadelphia, Pennsylvania, the brass drafting instrument with pierced spandrels and signed on the backplate in script, Young & Sons, Philada. PA, the rotating center carries a silver scale calibrated 0-360 degrees, compass directions in block lettering and vernier with knurled thumb screw adjustment, 6 1/2 in. square.
Estimate $250-450

Keywords

William J. Young & Sons, Philadelphia, Pennsylvania, Young & Sons, Backplate and wing, Brass instrument, Calibration, Compass, Protractor, Technical drawing