Check out position of the "D". I don't know if they used different dies or just one for this low production run.
There were four rev, MM on this one is too large and I think the shape is wrong. The rims don't look good either.
It's fake, no question. From the photo's the MM is wrong. It doesn't even look like a Philly coin with an added MM. The coin itself is bogus.
There are, beyond any shadow of a doubt, more of these circulating as fakes than were originally minted. 4 reverse dies were used for the real ones. All used the punch from the Lincoln Cent, all are slightly rotated and two are repunches with splitting visible on the serif. This one's mint mark location would have to be the lowest of the 4, Reverse 4. The top of the D on Reverse 4 is even with the middle of the space between the top and middle bars of the E in DIME. The mint mark on the coin here seems obviously lower than that. If that's the case, it cannot be authentic.
Here are the 4 MM's. To me the entire coin looks like a cast fake, the rims in particular are terrible.
Anyone interested in seeing a Heritage Photo of real PCGS MS67FB CAC check this website out. Sold during an their auction in 08/2010 for ~$207,000. A few of the attributes for this coin are found in the shape and location of the MM D as shown by kspallow's link. One of the keys is the Serifs of the D as well as the |> shape (interior of D is a sideways V). The coin displayed by BigTee44 has too many problems to describe other than say, look at a real one. Especially since there were only 4 dies used to make this coin. Photo Courtesy of Heritage Auctions http://coins.ha.com/itm/mercury-dim...-pcgs-cac/a/1143-4490.s?hdnJumpToLot=1x=0&y=0
So I know it's fake but still trying to determine how. I knew the MM was off which is why I knew it was a fake. Here are some new pictures. Non magnetic 2.8 grams
Heh. I thought it was just the pic, but the third leaf above the mint mark ain't even there. I still think it was encased, which caused the odd reeding. It's a pretty good copy otherwise, and I can't see them deliberately getting the reeding that bad.