Plain Surveyor's Compass by T. Whitney

Description:

Plain Surveyor's Compass by T. Whitney, No. 309 on the limb, with silvered 4 1/4-inch dial engraved in central ring T. Whitney, Maker, Philad., large fleur-de-lis at North, blued-steel needle with (later ?) threaded T-bar clamp on lifting-arm, silvered needle ring divided 0-90 in four quadrants, shaped limb with staff mount and two screw-on sight vanes, lg. 31 x ht. 7 in.
Estimate $1,000-1,500

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