Brass Vernier Surveyor's Compass by B. K. Hagger & Son

Description:

Brass Vernier Surveyor's Compass by B. K. Hagger & Son, with silvered 5 1/2-inch dia. dial, ribband engraved B.K. Hagger & Son, Makers, Baltimore, large fleur-de-lis at North, needle ring divided 0-90° in four quadrants, blued-steel needle with agate lifting hub, shaped limb with geared vernier operated from underside, outkeeper counter, two vials, socket mount, staff-adaptor and twin screw-on sights, one calibrated for measuring incline, ht. 10, lg. 15 in., in mahogany case with label of W. & L.E. Gurley, (brass with older polish, solder repairs to bezel, dial possibly cleaned and retouched).

Note: Smart lists Benjamin K. Hagger and his son, John W. Hagger, as mathematical instrument makers in Baltimore between 1824 - 1838.
Estimate $800-1,200

Keywords