1999 P over P?

I found this 1999 P in a roll search today and wanted to get others opinion of it. Is it a P over P, P over D, or just a machine doubling. I know the pic is not the best but any thoughts will help.

 

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The mint stopped hand punching mint marks into the dies in the late eighties. RPM's are supposed to be impossible after this occurred, although the mint has produced some other type errors/varieties that where not supposed to be able to happen, yours is most likely machine doubling.
Keep looking and look at pre 89 (I think) they are out there! Good luck!

 

die erosion.

 

Good info to know nickelman. Thanks

 

I have found other 1999 P with the same type mint mark but some of them also have doubling on the date and in the moto mainly in the G and O in God. I have a new camera and I am still woking on how to use it properly but here are some of the pic. If you look closely at the date you can tell the second and last 9 has doubling in the down strokes and in the second pic you can see that God also has boubling. As you said it is most likely machine doubling but I have not seen machine doubling this pronounce.

 

andy,

This is the same type of doubling discussed in Cheryl's Thread "DDO or What?"! check out the posts in this Thread: http://www.cointalk.org/showthread.php?t=38053


Frank

 

Thanks Huntsman, strike doubling makes more sense then machine doubling.

 

Andy,

Strike doubling and machine doubling are one and the same just different terms for it! The type of doubling of which I was referring is Die Deterioration doubling of which is on your Nickel.


Frank

 

Thanks Frank, I guess it is all a learning process.

Paul

 

Paul.
This might help you with some of the terms used in error-variety collecting
http://hermes.csd.net/~coneca/content/glossary.html

Bruce.

 

Thanks Bruce, this will help.