Message:

<p>[QUOTE=&quot;bonbonbelly, post: 1224720, member: 22931&quot;]Hi Cassy,</p><p>I am no expert but I believe what you have is a clad coin that was soaked in acid. Copper is more reactive than nickel when exposed to an acidic solution and will wear away quicker, leaving the rim of the coin looking worn down in the middle like your pictures show. The acid bath would also cause discoloration on the surfaces when the coin was removed and allowed to air dry.</p><p>A &quot;clam shell&quot; is a lamination error where the planchet is formed from metal rolled with a trapped gas layer or other subsurface defect that breaks though to the surface during the coining operation. This would really look like a clam shell with definite separation of layers. Hope I didn&#039;t confuse you and welcome to CT.</p><p>Joe[/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