Question for Peace dollar experts

It’s been hard for me to capture on photo but will continue to try, but in the meantime I have an uncirculated 21 P that has clear doubling on the word “ONE” on reverse. I cannot find anything mentioned about a double die for this issue in red book or elsewhere - has anyone else seen this? Would this be something desirable? Any thoughts from 1921 high relief peace experts appreciated in advance - thank you.
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Comments
The bottom one probably shows it the best, the O is doubled and also can see it on the N bottom left edge... thought??
Looks like mechanical doubling
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Agree with Gumby. Machine doubling.
MD
Can you please inform me what machine doubling means? Thanks for your knowledge in advance it’s much appreciated — I’ve been trying to figure this out
About mechanical doubling
https://doubleddie.com/144822.html
About Vam's for a 1921.
http://ec2-13-58-222-16.us-east-2.compute.amazonaws.com/wiki/1921-P_Peace_VAMs
What they said. ^
MD is identifiable by the way the metal looks like it was pushed and moved. See how on the O the doubled area does not add any width (hub doubling adds width to devices) and the N has a raised part where the displaced metal moved upwards.
Collector, occasional seller
I see "machine doubling" and "mechanical doubling" being used. Is there an accepted standard terminology?
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
From what I’ve seen, they’re correctly used interchangeably.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
It is machine doubling (one more vote to support the conclusion).... @Che_Grapes ... The links posted above will help you to understand the phenomena and to identify it when encountered on other coins. Cheers, RickO
Also known as strike doubling.
Nice close-up picture @Che_Grapes
I agree that what you are seeing is Machine Doubling.
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Machine doubling is caused when the coin dies bounce as coins are struck. This occurs when the bolts holding the coin dies loosen. Machine doubling is very common and commands no premium.
Wayne
Kennedys are my quest...
Thank you I appreciated all the insight. I have since become more knowledgeable about MD and he fact it occurs due to “loose parts” (!!) in the striking prices (say what?) and that most experts actually view MD as a damaged or otherwise undesirable coin. Go figure! This coin in question just get better and better... first I over paid, submitted it and got a details cleaned grade, and now even a little MD on the reverse... wonderful! It’s my lemon coin of the year that’s for sure
Thanks again!
I've never heard of MD as being considered to be damage. It just doesn't add any value to the coin.
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire