Marking:  Britannia (English quality mark for sterling);  Lion's head erased (English quality mark for sterling);  E (London date letter for 1720–21);  Ma, cinquefoil below, in shield (maker's mark for Thomas Mason).
Location of marks: All marks on cover and at right of handle;  on handle
Reverend Alfred Duane Pell (until 1925; 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