Inscription: Engraved on shield on one facet of bowl: P L with W above and M below
Pricked on underside of foot: T A
Lightly scratched on underside of foot, in script: 918 A Griffiths
Lightly scratched on underside of foot: D8915/609 Mr. H [?] (dealer's mark)
Marking:  Leopard's head crowned (London assay office mark);  Lion passant guardant (English quality mark for sterling);  a in pointed shield (date letter for 1618–19);  JP (script) in rayed sun (maker's mark for Jeffery Prescott);  Lion passant guardant, with shaggy pelt (London assay mark, used 1604–06).
Location of marks: – on bowl near lip;  on underside of foot
[ S. J. Phillips Ltd. , until August 5, 1966; sold to Irwin Untermyer ] ; Irwin Untermyer , New York (1966–68; 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