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1971 S Eisenhower Unc RPM?

 
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Author Previous TopicReplies: 5 / Views: 223Next Topic  
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56 Posts
 Posted 05/08/2021  01:16 am Show Profile   Bookmark this topic Add Watermelon to your friends list Get a Link to this Message
Hi ,
I could use a some help to determine if this is a rpm or double strike?

Thanks!





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United States
39370 Posts
 Posted 05/08/2021  04:16 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
Nice close ups, looks like MD.
John1
( I'm no pro, it's just my humble opinion )
Searched 5+ Million Cents Since 1971
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United States
51557 Posts
 Posted 05/08/2021  11:43 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Machine Doubling is a movement caused by the machine after the strike. Note the area is not raised, not lowered, but moved a bit leaving a level mark. This is common and happens a lot more on the larger diameter coins. This is just very minor though. It get pretty sever sometimes:

If you are looking for RPM and doubled dies, avoid the outsides of devices. That is where you will find Machine Doubling. On a RPM you would expect to see the area showing a rise, not just a slide mark. On a doubled die you would also see the same spread that is a trade mark of a great doubled die. They are raised, not level scuff. The spread is seen on the centers of the devices, not on the edges of them.
Because Machine Doubling is caused by the machine, you can have a doubled die and Machine Doubling on the same strike. The doubled die has the doubling caused by the die, but Machine Doubling can affect a normal die and a doubled die:

Note the aqua arrows, that is pointing to the Machine Doubling. The other areas are hub doubling. Note the hub doubling is showing spread and rounded contour. The Machine Doubling is showing reduction and flatting of the affected areas. So if the contour is gone, it is Machine Doubling or damage to the coin. The white arrows are showing the hub doubling.
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/
Edited by coop
05/08/2021 11:44 am
Pillar of the Community
United States
5966 Posts
 Posted 05/08/2021  3:27 pm  Show Profile   Bookmark this reply Add merclover to your friends list Get a Link to this Reply
Agreed, post mint damage ( PMD). Keep searching!
ša va bien aller

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United States
56 Posts
 Posted 05/09/2021  8:55 pm  Show Profile   Bookmark this reply Add Watermelon to your friends list Get a Link to this Reply
Thanks!!
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