Message:

<p>[QUOTE=&quot;desertgem, post: 20325644, member: 15199&quot;]Here is an URL about how the mint electroplates the zinc core with copper. It is a very sensitive balance of chemistry and electrical activity, and an imbalance can leave a thicker band areas and also thinner band areas. Since it is dealing with atomic size, the areas can be very small in width. I think that the monitoring chemists didn&#039;t do it correctly and&nbsp; some are wider ( also in our eye very tiny) than others like your example, and&nbsp; then the planchets will be form into an irregular plated&nbsp; cent by the force of the&nbsp; press. My best thought.&nbsp;&nbsp; Jim</p><p><br /></p><p><a href="https://www.comsol.com/blogs/electroplating-u-s-mint-makes-penny/" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.comsol.com/blogs/electroplating-u-s-mint-makes-penny/" rel="nofollow">https://www.comsol.com/blogs/electroplating-u-s-mint-makes-penny/</a>[/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