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All Forums Category: US Coins and Currency Forums Forum: US Modern Variety and Error Coins

1993-D- Lincoln Cent Dmm

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greott71
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1993-D--Lincoln-Cent-Dmm

1993-D--Lincoln-Cent-Dmm

1993-D--Lincoln-Cent-Dmm
BlueSolo
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 Posted 03/25/2016  11:07 pm  Show Profile   Bookmark this reply Add BlueSolo to your friends list Get a Link to this Reply
The term is RPM, re-punched mint mark. However, RPM's ended in the 90's. This looks like MD to me, flat shelf-like doubling of the MM. You can see this on the right side of the '3' in "1993" as well

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Rackster
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 Posted 03/25/2016  11:13 pm  Show Profile   Bookmark this reply Add Rackster to your friends list Get a Link to this Reply
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Slamnbass
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also and think the last year for rpm's was 1989
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John1
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MD with split plating. RPM's ended in 1989,DMM should read RPM.
John1
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coop
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1990 was the start of the mint mark location on the master dies. That way the location would be the same for all dies. So it is true that RPMs ended that year with the removal of the mint mark punches and 1989 was the last year for them to happen because of the use of the mint mark punches. Both were correct.
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