i found this coin hunting a while back its a 1972 d penny.

possible ddr on united and America and a little on e pluribus Unum and on one.

 

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Looks like MD to me. Flat and shelflike on the reverse. There are a few DDOs for this date and mint mark, but would need a full picture to tell.
http://doubleddie.com/671734.html

 

Here are full pic I tried to put a full pic on my coin miroscope

 

I meant the obverse. The reverse has MD.

 

Ok thanks I have some cool errors to post next

 

If your machine doubling and your "full coin" microscope pictures are any indication of what is to come, I think I'm going to have a seizure. ~ Chris