This antique English sterling napkin ring was made in 1903 in Sheffield. There is a full set of English hallmarks. The maker's mark is shown in the left side of the last picture--A. Clark Manufacturing Company. The ring is somewhat oval in shape though flattened on the bottom so that it sits upright. The diameter opening across is one and seven eights inches. The width (side to side) is 1.5 inches. The napkin ring is in pristine condition.