1986-D Dime Rockwell Test Mark In Planchet?

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Author	Replies: 4 / Views: 2,172
jay4202472000 Pillar of the Community United States 853 Posts	Posted 06/14/2013 12:40 pm Is there any possibility that the dime shown below has a Rockwell test mark left in the planchet? The floor of the pit is smooth, so I don't think it could have been dug or scratched out. Just want to know what you guys think. Edited by jay4202472000 06/14/2013 2:04 pm Report this Post to the Staff

oih82w8 Pillar of the Community United States 7840 Posts	Posted 06/14/2013 1:41 pm The Rockwell Hrdness tester we have in our lab does not that type of oblong tip, it is "round", at least the one on the tester is round. Where on the obverse of the coin is the "impact" mark? The reverese shows a protrusion (the act of projecting out from something) versus a depression which should be on the obverse...unless it is an inclusion (a foreign particle in metal). Or does the top image shows a small "dimple" in the raised up area? Edited by oih82w8 06/14/2013 1:42 pm Report this Post to the Staff
Jayman931 Pillar of the Community United States 2651 Posts	Posted 06/14/2013 1:49 pm I see pictures of a Quarter and not a dime. Report this Post to the Staff
jay4202472000 Pillar of the Community United States 853 Posts	Posted 06/14/2013 2:00 pm I don't know where the dime pics went. I fixed it. That was odd. Edited by jay4202472000 06/14/2013 2:05 pm Report this Post to the Staff
SsuperDdave Moderator United States 23522 Posts	Posted 06/14/2013 2:18 pm I can't think of any reason why you'd want to Rockwell test a planchet. The stuff arrives at the Mint in huge rolls of sheet, and they do nothing metallurgical with it. For that reason I'd think that they would do a random test on the material before it was cut into blanks, if they were going to test it. Report this Post to the Staff
	Replies: 4 / Views: 2,172

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