Could you please upload another photo of the mark as close up as possible and any information about when and how acquired i.e, inherited 10 years ago, given to grandma when grandma was in her 40s or bought at a flea market 10 years ago, etc
A close-up photo of the marks (please upload in a follow-up submission). We will move to this submission so it's all in the one place. Any other information you may have already discovered or any other details will help also.