Identification Rogers Silver Company Marks - What Agencies Handles Police In San Luis Obispo Countylibrary The (r) rogers (r) mark was first used about 1901, and the 1881 (r) rogers (r) mark was first used about 1910. Keystone mark was used for half plate flatware and medium grade. Rogers is a recurrent name in american makers of coin, sterling and silverplate ware. There is a great confusion about the firms bearing this name. The number of companies using the.
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