Marking:  Leopard's head crowned (London assay office mark);  Lion passant (English quality mark for sterling);  g in pointed shield (date letter for 1684-85);  IS, a pillar between.
Location of marks: On underside of base
Lord Belhaven and Stenton (until 1963; sale, Christie's, London, October 16, 1963, no. 171); [ S. J. Phillips Ltd. , until January 24, 1964; sold to Irwin Untermyer ] ; Irwin Untermyer , New York (1964–68; 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