This lovely English napkin ring is semi circular with rounded corners. The top is engine turned with a rectangular cartouche monogrammed R.A.B. The back is hallmarked for Birmingham 1924 with the maker's mark for Henry Williamson Ltd. The serviette holder is 1 7/8 inches across, 3/4 inches wide, and a tad over 3/4 inches high. It weighs 17.6 grams, is handsome and in excellent vintage condition.