Message:

<p>[QUOTE=&quot;scarborough, post: 3673764, member: 93146&quot;]I thought the group would be interested to know how I determined this coin was plated, and how this issue was resolved.</p><p><br /></p><p>One of the members following this thread suggested that I test specific gravity. What a great idea!</p><p><br /></p><p>We know that</p><p>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 100% Ag = about 10.50</p><p>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 75% Ag, 25% Cu = 10.11</p><p>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 100% Cu = 8.92</p><p><br /></p><p>As my correspondent said, “The specific gravity should be closer to silver, 10.49, than to copper 8.9. Anything below 10 would be a cause for concern. Below 9.5 it’s definitely plated.”</p><p><br /></p><p>Over a couple of days I re-tested the coin a number of times, each time getting specific gravity results between 9.3 and 9.0. (I tested a silver dollar to make sure my procedure was correct.)</p><p><br /></p><p>So I wrote to the seller with my conclusion and how I reached it.</p><p><br /></p><p>This morning I received a brief note authorizing the return for refund. The coin has been sent back.</p><p><br /></p><p>Thank you to the many forum members who commented.</p><p><br /></p><p>PS: … and I bought a macro lens for my phone to take better photos![/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in