Message:

<p>[QUOTE=&quot;Oldhoopster, post: 3942534, member: 84179&quot;]It’s not a 0.&nbsp; It’s an artifact of the stain.&nbsp; There is a good chance that the copper plating was breached, and the zinc underneath has started to corrode resulting in a bubble that looks similar to a 0.&nbsp; The copper plating is approx. 8 microns thick (roughly 0.0003”), so it doesn’t take much to break through and zinc is very reactive.&nbsp; Who knows what chemical stained the coin, but it’s very likely to be unfriendly towards the zinc.</p><p><br /></p><p>Whenever you see “interesting” marks on zinc cents in the presence of physical or environmental damage, always consider zinc rot as a likely culprit.[/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