But look at this thing for Rogers silver plate with a keystone and “R” https://sha.org/assets/documents/Trademarks%20on%20Base-Metal%20Tableware.pdf https://drive.google.com/open?id=12nDM7FQ9qAICUD6CcHo8PX-lqpSZPs5A https://drive.google.com/open?id=12nDM7FQ9qAICUD6CcHo8PX-lqpSZPs5A