Message:

<p>[QUOTE=&quot;GDJMSP, post: 7605126, member: 112&quot;]Given what we can see there&#039;s really only one explanation that makes sense to me. So first off let&#039;s talk about what we can see.</p><p><br /></p><p>We can see that there was an obvious detached lamination starting at the left edge of the E and ending at the right edge of the D and involving part of the rim. I don&#039;t think anybody would dispute that much. But what we can also see is obvious raised metal to the right of the D, particularly the bottom right corner of the D.</p><p><br /></p><p>But at the same time it also obvious the metal was not raised as a result of the strike, it was raised post strike because of that metal is pinched together into a raised crease, kind of like a wrinkle would be.</p><p><br /></p><p>So what could cause such a thing ? What sequence of events would have to occur for that to happen ?</p><p><br /></p><p>To start with the lamination, which is caused by a bad alloy mix, has to be present in the planchet. Then the planchet is run through the upset mill. And it is at this point that I believe the lamination detached, due to the force being exerted upon it from the outside edge. Afterwards the coin is struck resulting the in the E and D, and at least part of the berry, being raised.</p><p><br /></p><p>That explains that much of it, but we still haven&#039;t explained how the metal the right of the D got pushed up and wrinkled as it is. Well, I think it was a post strike contact that caused that. And I believe it was post strike because where the wrinkle is, its location, would have been under the field of the die and being pushed down and held flat by the die&#039;s field - meaning it would have been impossible for it to lift up and wrinkle at that time. So the wrinkle in the metal had to occur post strike. And the only thing that could have caused that would be a sharp and hard post strike contact.</p><p><br /></p><p>So why did the metal push up and wrinkle there ? I believe it was because the lamination underneath ran on a bit further to the right, beyond the edge of the D. So the very top layer of the metal was loose underneath, but still strongly and firmly attached beyond that. And when some kind of post strike contact occurred, and hitting at a slight angle from left to right, it caused the top layer of the metal to push up and wrinkle there.</p><p><br /></p><p>That&#039;s the only sequence of events I can imagine that would result with what we see. The lamination and its being detached, all of that is pretty much straightforward and easy to understand. We&#039;ve all seen that much dozens of times. But the wrinkle in the metal - that&#039;s the unusual part - that&#039;s just not something we see on coins. And given its specific location, I cannot imagine anything else that could have caused it because it definitely had to occur post strike specifically because of its location.</p><p><br /></p><p>But if somebody can provide an explanation that gets beyond that fact, well, I&#039;m willing to listen.[/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