Purplish Pres Dollar - Coin Community Forum

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Author	Replies: 10 / Views: 1,034
CoinGeek Valued Member United States 58 Posts	Posted 04/07/2008 5:26 pm Anybody have thoughts on this? The $1 with the odd finish was found in a fresh roll from the bank. It is pictured with a regular one from same roll. There were 3 others in the roll that were partially finished like this but lighter. More like uniformly splochy. None in the other 3 rolls I got that day. Is this sintering? Image: MonroeError1.jpg 73.66 KB Report this Post to the Staff

copperflopper New Member United States 48 Posts	Posted 04/07/2008 6:42 pm Probably hand rolled and toned that way Report this Post to the Staff
CoinGeek Valued Member United States 58 Posts	Posted 04/09/2008 12:22 pm Unlikely I think in that they were procured from the bank were part of their distribution from the armored car company and within the first week of release. Even if this were not so, what would be the motive? I saw a similar piece but different president recently at a show for sale at $45 as an error. The dealer said it was "sintered" and claimed the error rate to be 1 in 5,000 to 10,000. He was busy so I questioned him no further. Thanks for the reply. Report this Post to the Staff
foundinrolls Pillar of the Community United States 3507 Posts	Posted 04/09/2008 3:26 pm Yep, It is a sintered planchet error. Thanks, Bill Report this Post to the Staff
CoinGeek Valued Member United States 58 Posts	Posted 04/09/2008 8:24 pm Thanks for the response Bill. Report this Post to the Staff
biokemist6 Bedrock of the Community United States 12437 Posts	Posted 04/09/2008 9:31 pm Could you show a straight-on photo of the other three as well? Edited by biokemist6 04/10/2008 5:52 pm Report this Post to the Staff
CoinGeek Valued Member United States 58 Posts	Posted 04/10/2008 4:40 pm I'll see what I can do about that once I get home from work later today. Report this Post to the Staff
CoinGeek Valued Member United States 58 Posts	Posted 04/10/2008 7:40 pm I stand corrected, there were 4 others. Here are 2 shots each of the obverses and reverses. The coin in the top middle is the same one from the prior picture and top left is a regular piece for reference. I'm not a great photographer and it's hard to get lighting that does the finish justice. Probably best is 2nd reverse shot. That why I picked the initial angled shot in the post above. The finish looks like it would just rub off and I got curious enough to test the theory by rubbing the field of one with the edge of a bamboo chopstick and it wouldn't leave a mark. Image: SinteredMonroesOb1.jpg 63.66 KB Image: SinteredMonroesOb2.jpg 62.74 KB Image: SinteredMonroesRv1.jpg 64.87 KB Image: SinteredMonroesRv2.jpg 62.38 KB Report this Post to the Staff
snowman Pillar of the Community United States 1840 Posts	Posted 04/10/2008 8:14 pm I bet I'm not the only one that doesn't know what the term sintered means. Could some one educate me on this term? Report this Post to the Staff
biokemist6 Bedrock of the Community United States 12437 Posts	Posted 04/10/2008 10:21 pm After a blank is punched, it is run through an upsetting mill to form the initial rim, creating a planchet. The planchets are placed in rotating annealing ovens to soften the metal for striking. Since they are turning, rotating, and generally banging into each other, the planchets shed a fine metallic dust. A sintered planchet is created when one is stuck in the annealing oven for an extended time, fusing(not melting) the metal dust to the surface of the planchet giving it a dark splotchy surface. Report this Post to the Staff
snowman Pillar of the Community United States 1840 Posts	Posted 04/10/2008 10:41 pm Biokemist6 - Thanks for the info. Report this Post to the Staff
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