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GSA Morgan Planchet Striations?
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<p>[QUOTE="Sean5150, post: 2293474, member: 75607"]I'm having trouble with the second paragraph. Are you saying the lines are not in the same direction? Because they are in the same direction if you think about it.</p><p><br /></p><p>I understand that a sanded floor can produce parallel lines, but for it to be scraped on the floor, like you said for an inch or two, with no other impact marks or random marks, would require a surgeon's precision and to me seems outside the realm of possibility.</p><p><br /></p><p>To address your edit, the reason the lines are more prominent in the details could be because, as Dave said earlier, the recessed parts of the die never actually touched the metal. If the dies are spaced a little too far apart, then a weak strike occurs and the deepest parts of the die barely touch the metal, if at all. And to me, the striations look wider on the devices, which would correspond with your explanation of what happens when the metal gets pushed into the die. To me, the striations would be more prominent on parts of the coin that received the least pressure. How many Morgans have those striations on the ear and cheek?</p><p><br /></p><p>But it sounds like I'm not going to convince you, so I will appreciate your commentary on what happens on the press. It is fascinating to think about what occurs on a microscopic level.[/QUOTE]</p><p><br /></p>
[QUOTE="Sean5150, post: 2293474, member: 75607"]I'm having trouble with the second paragraph. Are you saying the lines are not in the same direction? Because they are in the same direction if you think about it. I understand that a sanded floor can produce parallel lines, but for it to be scraped on the floor, like you said for an inch or two, with no other impact marks or random marks, would require a surgeon's precision and to me seems outside the realm of possibility. To address your edit, the reason the lines are more prominent in the details could be because, as Dave said earlier, the recessed parts of the die never actually touched the metal. If the dies are spaced a little too far apart, then a weak strike occurs and the deepest parts of the die barely touch the metal, if at all. And to me, the striations look wider on the devices, which would correspond with your explanation of what happens when the metal gets pushed into the die. To me, the striations would be more prominent on parts of the coin that received the least pressure. How many Morgans have those striations on the ear and cheek? But it sounds like I'm not going to convince you, so I will appreciate your commentary on what happens on the press. It is fascinating to think about what occurs on a microscopic level.[/QUOTE]
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