Lincoln Cent 1974 S RPM?

If you look at the date, you will see the same thing. That is Machine Doubling. The other areas inside of the curved areas of the mintmark, are mintmark punch damage. Note the real deal shows them as well, and they are not part of the RPM:

http://www.coppercoins.com/lincoln/...ie_state=mds

not sure what happened to the MM but not an RPM though.

hwbfresh, I found some information I believe will help answer your questions at https://board.conecaonline.org/foru...1-1974-s-rpm

Turns out, the San Francisco mint actually punched the 'S' mint Mark of both proof and business strike coins using a broken mint mark punch that had been originally been made/used 32 years earlier on 1940s-1950s San Francisco minted coins. In 1974 when the punch that was being used broke, they must not have had time to make a new one I guess, because they ended up using the old degraded punch they had on hand to punch the 'S' onto multiple denominations minted in San Francisco in 1974. Hope this helps. &

Very cool that you know this, GoonieGirl80 and to the forum. I've posted these findings a few times but it has not caught on yet, thanks for bringing it to the forefront.
LINK http://www.varietyvista.com/Mystery...%20Punch.htm

Welcome to the CCF...keep on truckin (coin hunting)!!!

KK