Heavy, thick silver spoon ring, size 7-7 1/2 US “IS stands for "International Silver," a cartel of silverware manufacturers formed in 1898 by 14 silver producers, the largest of which were Holmes and Edwards, Meriden Britannia, and Rogers Brothers. The advantages of Holmes & Edwards Super Plate are described for the customer. Solid silver is inlaid before plating at two rest points to insure longevity of the silverware.”