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1970 S LMC RPM And Machine Doubling

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John1's Avatar
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56855 Posts
 Posted 07/10/2022  04:27 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
Please read the buy/sell/trade rules.Also,your email is not turned on here on CCF.
John1
Edited by John1
07/10/2022 04:29 am
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coop's Avatar
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 Posted 07/10/2022  12:56 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
If the coins had the mintmark punched into the coin then the mintmark would be incuse. The punch used on the, thus all the mintmarks will be a match for that die. Thus if there is a RPM, then it would be on every coin struck with that die. So the incuse mark on the die, will leave a raised mintmark on the coin:
1970-S-LMC-RPM-And-Machine-Doubling
Post 1990 coins have the mintmarks on the design of their dies. Thus no more were to be punched into the dies after 1990. (well most of the time)

CoopHome: How are mintmarks added to the 1989 back coins? hand punched into the dies
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