1971-D Kennedy Half, Is This Doubled Die Obverse / DDO ?

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Author	Replies: 4 / Views: 669
NewbieCoiner808 Valued Member United States 463 Posts	Posted 07/04/2019 7:14 pm I know there is some Machine Doubling but Tanman posted a coin the other day with Machine Doubling that was also doubled died. My question is, I have been studying all the examples on variety vista & anywhere I can find of this coin. Many of the examples shown have a weak "R" in IGWT but they point out the ridges inside the hole of the R (or whatever you call it if there's even a term for it) and they call that the doubling. The "R" in this pic looks like one of those examples to me? Plus you can see matching ridges on the T, U, S & a little on T. Sorry I don't have full coin pics, I put it in a 2x2 and can't get a decent pic. But my question is just about the "R"? That seems to always be the deciding factor in almost every Kennedy DDO Report this Post to the Staff

coop Bedrock of the Community United States 62064 Posts	Posted 07/05/2019 4:04 pm Note on the 'RU' on Trust. On the 'R' the outer curve of that device is flattened from Machine Doubling after the strike. So rather than being enlarged as in the case of hub doubling, it is the opposite. Reduced from normal size. So this is not a doubled die, but a normal strike with MD after the strike affect those two devices. On a doubled die, the devices are enlarged and raised. On Machine Doubling the devices are not enlarged, and reduced in size because of the MD after the normal strike. If it were a doubled die, you would expect to see something like this on those devices. Note the enlarging of the devices with the spread line in the center of the devices. (not on the edge of the devices that Machine Doubling shows.) Edited by coop 07/05/2019 4:05 pm Report this Post to the Staff
Kopper Ken Pillar of the Community United States 3402 Posts	Posted 07/05/2019 8:34 pm Flattened underlying image...machine doubling (MD) KK Report this Post to the Staff
NewbieCoiner808 Valued Member United States 463 Posts	Posted 07/05/2019 10:29 pm Ok, I think I have the Kennedy's figured out now. Some Machine Doubling still looks like real doubling to me but I think I understand now. I definitely have the quarters figured out lol. Thanks for all the info and explanations coop. You are a wealth of knowledge! Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 07/05/2019 10:33 pm My goal: To help you see what I see on your coin. If I just gave out the answer, you would know the answer to the question, but you would not learn why/why not it is what you see on it. So Showing and explaining helps new ones learn a whole lot quicker. When it took me 10 years of learning from yes or no answers, I can assist new ones to learn in months what it took me years to learn. Report this Post to the Staff
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1971-D Kennedy Half, Is This DDO?