Inscription: On back of bowl: W.S.
Marking:  probably king's head, profile to right, in square punch (Stockholm town mark, 1716–45);
 initials GS (Roman) in ellipse (maker's mark, possibly Gustaf Stafhell the elder, Stockholm master, 1714–55, though his recorded mark is script not Roman)
Location of marks:
On back of bowl
Mrs. Samuel P. Avery (until 1897; to MMA)