For a 2007 D penny to fetch that much money... It would have to be a graded MS70 proof ... there probably wasn't that many graded that high for that year, making it pretty rare... I'm just guessing....
I wanted to add that the MS70 grade is actually a "perfect" coin or "mint state 70" while PR70 or PF70 is a proof. The
regular coin and proof are different strikes.
A proof numismatic coin tends to have a much higher standard of finish, contains a greater depth of sharpness, definition and detail. A proof numismatic coin also typically has a mirror like finish on the flattest surfaces of the coin and a contrasting matt finish on any raised element of the coins design.
Proof coins are made using specially polished and treated dies and are also normally double struck at slower speeds which helps them achieve a higher definition and precision of detail.
If you need visual proof please let me know and I'll post the photos immediately with my name or my thumb up or w/e you want to be in the pic so that you know it's me.
Despite the fact that people are skeptical and there is no such thing as an MS-95 grade, can you post some pictures of these pennies?