I can't find anything like it except cheap mid century ones which this is not. On the rear lower left side is an impressed A. On the inside is marked USA MA 3 and what looks kind of like Plymouth but the 2nd letter is worn out and the T is too close for a u to be there. Kind of looks like P YMOT. The inside has thousands of coin scratches going every which way. It is SOLID BRONZE. Not clad and not brass. It's hard to see but it has a very high copper content and even the screws are bronze and not brass. They are very soft and in removing them I couldn't help but scratch one and see more copper than brass as they are so soft. ANY info. would be greatly appreciated. Thanks, Brian
