1990 D/S Repunched Mint Mark / RPM ?

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Author	Replies: 3 / Views: 1,232
Secret Argent Man Valued Member United States 320 Posts	Posted 04/19/2009 12:19 am I found this last night... looks like a 1990 D penny, but just on the left of the D is what looks like the remnants of an S. Or it might be a piece of crud that just looks like an S, I can't tell. But I'm pretty sure it's an RPM, as the "s" is raised slightly and is copper colored. So, I think I might have identified my very first repunched mint mark! (Is that the right term, seeing as how it's not exactly "repunched" it's more of a dual mintmark?) Also, does anyone have any advise on how to go about cleaning it? What looks like verdigris in the picture is actually probably paint- the back as a lot of paint. I've heard acetone is a good cleaner, but that seems a bit strong and like it might damage. Thanks Report this Post to the Staff

Secret Argent Man Valued Member United States 320 Posts	Posted 04/19/2009 12:19 am Oh, wait, duh.... http://www.flickr.com/photos/foyo_p...17021589490/ Report this Post to the Staff
desertgem Pillar of the Community United States 860 Posts	Posted 04/19/2009 01:02 am Welcome to the forum. From 1990, the mint mark was added on the master hub, eliminating the striking of each working die with a mint mark. Thus it would be extremely unlikely for such an OMM to occur. I would say it is almost assuredly is what you said, Quote: Or it might be a piece of crud that just looks like an S . I have ran into other dates where the same has happened, but when I compared carefully the shape of the "crud" with the specific mint mark, I had no doubts.It does seem that around 1994 some mint marks were ground off and the dies reworked, but I have not seen one personally. Jim Report this Post to the Staff
coppercoins Pillar of the Community United States 7629 Posts	Posted 04/19/2009 02:18 am 1990 D/S cent...physically impossible. Sorry. Report this Post to the Staff
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1990 D/S RPM?