Marking:  Leopard's head crowned (London assay office mark);  Lion passant (English quality mark for sterling);  D in pointed shield (date letter for 1581–82);  M with line across in shield with pointed base (unidentified maker's mark).
Location of marks: - on underside of bottom of cup ,, on inner rim of cover
[ S. J. Phillips Ltd. , London, until September 24,1971; sold to Untermyer ] ; Irwin Untermyer (1971–73; bequeathed 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