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1972 D Kennedy Half Dollar Possible MD Or DD On The Back Of The Hair?

 
 
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96 Posts
 Posted 07/20/2019  10:55 pm Show Profile   Bookmark this topic Add Milano113 to your friends list Get a Link to this Message
I found this coin in rolls hunting I have notice below the chin and on the back of the hair a double line. Now if it is a Machine Doubling can be done in two different directions ? I hope you can understand what I mean. I don't really have a knowledge to understand how its done.



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United States
38641 Posts
 Posted 07/21/2019  01:02 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
It is Machine Doubling and the only rule for Machine Doubling that it follows it that it reduces the devices. It can happen in one direction or several. It only obeys one rule. I found examples from the same dies, dame machine and found it doesn't even strike the same time each time.

Note how it was different from strike to strike.
Richard S. Cooper
Some have asked about my images I use and I'm glad to say, you can now you can see the DVD in sections on youtube:
1. Intro, older coins, toned coins 2. Doubled dies 3. Die events, One of a kind errors 4. So called errors, Coin information 5. Coin information Types and Varieties, Overlays
Jefferson nickel doubled dies Wexler/Rebar complete listings

trail dies:http://www.traildies.com/
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96 Posts
 Posted 07/21/2019  01:51 am  Show Profile   Bookmark this reply Add Milano113 to your friends list Get a Link to this Reply
Thank you again for your help!
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 Posted 07/21/2019  08:38 am  Show Profile   Check Errers and Varietys's eBay Listings Bookmark this reply Add Errers and Varietys to your friends list Get a Link to this Reply
More information about Die Deterioration? http://goccf.com/t/317950
Retired U.S. Mint Coin Die Set information. http://goccf.com/t/302961
1973 D Lincoln Memorial cent With Recurring Die Subsidence Error Information. http://goccf.com/t/304624
Machine Doubling tutorial. http://goccf.com/t/332421
Die states progression on coins. Scroll down, so you can see the different die state progressions. http://goccf.com/t/325638
Die Deterioration Doubling Tutorial. http://goccf.com/t/336470
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