Handleless seamed cylindrical cup with straight tapered sides and applied molded rim and foot ring; flat bottom set in. Engraved on exterior "PME" in conjoined foliate script. Bottom underside struck once "C•A•BURNETT" in raised serif letters in a rectangle flanked by a right-facing, standing spreadwing eagle in a clipped-corner surround (the one at left right-side up; the one at right upside-down).
Maker is Charles A. Burnett (1769-1849), who worked in Fredericksburg, VA from 1788-93; Alexandria, VA from 1793-96; and Georgetown, DC from 1796-circa 1840.