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Which 1971-D Jefferson Nickel Do You Prefer (GTG)
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<p>[QUOTE="heavycam.monstervam, post: 3231255, member: 73448"]Ive seen this effect on clad Kennedies, Jefferson Nickels and a few type 1 Buffaloes.</p><p>I thought i understood what caused it but i believe there is more than one answer to this question. </p><p>I just read a letter from the US Mint correspondence to Ken Potter.</p><p>The improper seperation of dies (after annealing) during quenching. If a number of dies are being quenched at the same time, and they are spaced too close together, they would cool too slow. Especially the dies in the middle, cool off too slow, so they wouldnt properly harden. </p><p>In short-</p><p>This is caused by an improperly quenched die resulting in an improperly hardened die. Which results in premature die fatigue. </p><p><br /></p><p>Now thats just 1 explanation, im sure improper annealing temperature could also produce similiar results. I know someone who is good at explaining this sort of thing-</p><p>[USER=112]@GDJMSP[/USER] </p><p>Forgive me Lehigh, i just summonsed up your arch nemesis<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie93" alt=":troll:" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="heavycam.monstervam, post: 3231255, member: 73448"]Ive seen this effect on clad Kennedies, Jefferson Nickels and a few type 1 Buffaloes. I thought i understood what caused it but i believe there is more than one answer to this question. I just read a letter from the US Mint correspondence to Ken Potter. The improper seperation of dies (after annealing) during quenching. If a number of dies are being quenched at the same time, and they are spaced too close together, they would cool too slow. Especially the dies in the middle, cool off too slow, so they wouldnt properly harden. In short- This is caused by an improperly quenched die resulting in an improperly hardened die. Which results in premature die fatigue. Now thats just 1 explanation, im sure improper annealing temperature could also produce similiar results. I know someone who is good at explaining this sort of thing- [USER=112]@GDJMSP[/USER] Forgive me Lehigh, i just summonsed up your arch nemesis:troll:[/QUOTE]
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