I recently purchased a tea set from an auction that was badly tarnished. With some elbow grease I have uncovered the following makers mark: a diamond laying on it's side, with the name Rogers, and quadrpleplate, 1275. After researching for hours on the net I can't find anything similar, and am finding tons of Rogers, Wm. Tom Dick and Harry! But no just plain Rogers. Can anyone help and save my sanity?