Log in or Sign up
Coin Talk
Home
Forums
>
Coin Forums
>
Error Coins
>
Just a question for expert error collectors.
>
Reply to Thread
Message:
<p>[QUOTE="Conder101, post: 1351234, member: 66"]Basically you are asking can two planchets enter the coining chamber at the same time and be struck so that you have two one sided coins.</p><p><br /></p><p>Yes it can happen. The struck side of each coin will have an extremely strong strike and I would expect the rim on the anvil side coin to be fully struck up and possibly squared off. </p><p><br /></p><p>The hammer side coin will quite possibly show a partial collar strike all the way around because with two planchets in the coining chamber the upper one will probably not be fully restrained by the collar. The rim may not be fully formed because the metal can move outward rather than filling the rim.</p><p><br /></p><p>The blank sides of the two coins will NOT be flat and smooth and where the blank sides meet the edge they will be uneven with high and low areas as you go around the coin. This is because the metal as it expands and reaches the rim will try to move toward the hammer die for the anvil coin and toward the anvil die for the hammer coin. Since it will not reach the collar at the same time all the way around in some areas the metal will move down and in others it will move up.[/QUOTE]</p><p><br /></p>
[QUOTE="Conder101, post: 1351234, member: 66"]Basically you are asking can two planchets enter the coining chamber at the same time and be struck so that you have two one sided coins. Yes it can happen. The struck side of each coin will have an extremely strong strike and I would expect the rim on the anvil side coin to be fully struck up and possibly squared off. The hammer side coin will quite possibly show a partial collar strike all the way around because with two planchets in the coining chamber the upper one will probably not be fully restrained by the collar. The rim may not be fully formed because the metal can move outward rather than filling the rim. The blank sides of the two coins will NOT be flat and smooth and where the blank sides meet the edge they will be uneven with high and low areas as you go around the coin. This is because the metal as it expands and reaches the rim will try to move toward the hammer die for the anvil coin and toward the anvil die for the hammer coin. Since it will not reach the collar at the same time all the way around in some areas the metal will move down and in others it will move up.[/QUOTE]
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
Coin Talk
Home
Forums
>
Coin Forums
>
Error Coins
>
Just a question for expert error collectors.
>
Home
Home
Quick Links
Search Forums
Recent Activity
Recent Posts
Forums
Forums
Quick Links
Search Forums
Recent Posts
Competitions
Competitions
Quick Links
Competition Index
Rules, Terms & Conditions
Gallery
Gallery
Quick Links
Search Media
New Media
Showcase
Showcase
Quick Links
Search Items
Most Active Members
New Items
Directory
Directory
Quick Links
Directory Home
New Listings
Members
Members
Quick Links
Notable Members
Current Visitors
Recent Activity
New Profile Posts
Sponsors
Menu
Search
Search titles only
Posted by Member:
Separate names with a comma.
Newer Than:
Search this thread only
Search this forum only
Display results as threads
Useful Searches
Recent Posts
More...