Struck thru wire or clash?

[rlm's cents]

I have a problem coming up with anything that would damage the die with a mark of uniform depth for its entire length across varying die levels with what appears to be abrupt relatively square ends. Someone would have trouble making a mark look like that even doing it on purpose. So, if it is not the die, how about the planchet. Suppose there was a hair, thread or wire (or other material dissimilar to copper) in the planchet. Could the planchet not have a rebound affect - sort of like compressing a rubber ball?

[lineop3]

I think it is a stray hair. Sorry EE1, just couldn't resist that....
Jean

Silly rabbit!
Anybody else have a clue as to what it might be? My brawms only unerstan simp words.
So don mak mi hed hoit k?
Thank you all for giving it a shot. G...you're giving it a pretty good assessment.

Aisha

[mustbebob]

Rim's cents...that is a pretty good thought, I hadn't thought along those lines. Unfortunately, the act of the strike itself would pretty much obliterate any planchet defects. Any more ideas?

[Maineman750]

Bob, my thoughts were a piece of thread/string trapped under the plating...in turn reacting with the zinc to create a bubble ?

[rlm's cents]

Rim's cents...that is a pretty good thought, I hadn't thought along those lines. Unfortunately, the act of the strike itself would pretty much obliterate any planchet defects. Any more ideas?

I did not say it was a planchet defect or at least an external one. I was more thinking of something inside the planchet so that after striking it would rebound and push the metal back out. Alternatively, it might gasify and result in a blister sort of like happens in the plated planchets. BTW, I have seen more than one strike through from thread. The imprint of the thread was obvious. Therefore, the thread was not obliterated due to the strike.

[mustbebob]

The imprint of the thread was obvious. Therefore, the thread was not obliterated due to the strike.

I thought you were talking about a planchet flaw, not a struck through thread. I am very aware of struck through threads as I have tons of them. They are in the striking chamber, they are not part of the planchet when it is being made. You said

Suppose there was a hair, thread or wire (or other material dissimilar to copper) in the planchet.

note the word in in your statement. How would anything get inside the metal unless it was made during the process of creating it? My point is that if it were a planchet defect, it would be obliterated by the strike. I made no mention of a struck through...Okay??

[rlm's cents]

I thought you were talking about a planchet flaw, not a struck through thread. I am very aware of struck through threads as I have tons of them. They are in the striking chamber, they are not part of the planchet when it is being made. You said note the word in in your statement. How would anything get inside the metal unless it was made during the process of creating it? My point is that if it were a planchet defect, it would be obliterated by the strike. I made no mention of a struck through...Okay??

Yes, I guess technically it would be a planchet flaw, but I thought that you were referring to an external mark. And by "in" I mean inside. No, internal planchet flaws (if that is what you prefer to call them) are not obliterated by the strike. That is how we get laminations and blisters.

[JeanK]

I dunno folks... maybe we need to dissect that coin to find out if it is rare!!!
Jean

Thanks for being so sweet little sister!
Jean