Message:

<p>[QUOTE=&quot;Conder101, post: 1184673, member: 66&quot;]The 1982 cents were pure copper plated on pure zinc and as Rim Cents said they had problems with the copper bonding. One of the problems is that zinc is very reactive and quickly forms an oxide layer.&nbsp; The copper plating can bridge over that layer but doesn&#039;t bond with it.&nbsp; In 1983 they changed the core composition slightly&nbsp; by adding a little copper to it.&nbsp; This improved the bonding but they have still had some problems with it ever since.[/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