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<p>[QUOTE="Conder101, post: 3572496, member: 66"]The only planchets the mint purchases are the cent planchets/ Everything else is blanked at the mint from purchased strip. They could do a hardness test on the strip though I'm not sure why they would. If the did and the mark ended up on a planchet the force of the strike would most likely obliterate it, ESPECIALLY if the mark was in the field area of the coin. As for Rockwell tests on die blanks, I could see them doing that to make sure they were soft enough for hubbing, but they would do it on the side of the die body not the die faces. If they DID do it on the die face it would be at the edge where the metal would later be cut away on the lathe as they reduced the die body down to create the neck of the die. I can't see them doing it on the part of the die face that would end up containing the design.[/QUOTE]</p><p><br /></p>
[QUOTE="Conder101, post: 3572496, member: 66"]The only planchets the mint purchases are the cent planchets/ Everything else is blanked at the mint from purchased strip. They could do a hardness test on the strip though I'm not sure why they would. If the did and the mark ended up on a planchet the force of the strike would most likely obliterate it, ESPECIALLY if the mark was in the field area of the coin. As for Rockwell tests on die blanks, I could see them doing that to make sure they were soft enough for hubbing, but they would do it on the side of the die body not the die faces. If they DID do it on the die face it would be at the edge where the metal would later be cut away on the lathe as they reduced the die body down to create the neck of the die. I can't see them doing it on the part of the die face that would end up containing the design.[/QUOTE]
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