Inscription: Scratched on underside of base, very small: 258/7.25 and illegible markings (dealer's mark)
Marking:  leopard's head (London assay office mark);  Lion passant (English quality mark for sterling);  O in pointed shield (London date letter for 1631/32);  W over M in shaped shield (unrecorded maker's mark);  indecipherable.
Location of marks: – on underside of rim, close to tear in the metal;  on rim, twice
Arthur M. Nowak , New York (until 1934; sale, American Art Association, New York, March 17, 1934, no. 57); Irwin Untermyer , New York (until 1968; to MMA)
Artist: James Cox (British, ca. 1723–1800)Date: 1766Medium: Case: gold with diamonds and paste jewels set in silver, pearls; Dial: while enamel; Movement: partly gilded brass and steel, wheel balance and cock of silver set with paste jewelsAccession: 1982.60.137On view in:Gallery 540