I would be more inclined to think a possible die chip. The tech who placed a mint mark there would have had to have been drunk.
That's definitely cool looking, There are others in the memorial series that have a D or supposed d in the date. 85D comes to mind. That one looks pretty interesting. Some of these I amigine could be die gouges and Die chips or IDB's. Either way cool find!
Wexler lists this one it was an 87D Reference http://doubleddie.com/310201.html 1987-D 1¢ WRPM-014 Description: D and totally separated D far to the NNW. It is nearly horizontal and intersects the top left of the 9 Cross References: Crawford: CRPM-001 Comments: Photos courtesy of Billy G. Crawford This image from Billy G. Crawford shows a nearly horizontal D punched into the upper left 9 in the date. This overlay from Billy G. Crawford shows how the D mint mark for the 1989-D cents is a perfect match for the image punched into the upper left 9.
Lol Drunk, boss pissed him off, having a bad day. Who knows but it looks pretty darn good and in third pic it looks like a lighter strike D SE of the main one in the 9!
If I were you I would contact @Fred Weinberg. He would be the one here, that I would feel comfortable, sending my coin to for attribution. I am not saying that it is, but might be worth having it looked at in hand.
I must admit, I am not a student of RPM's and this does have promise, so my post was just a guess. In addition to Fred and Wexler you might give @Nolan Workman a shout here as he has been doing quite a bit of work on RPM's. I do have several pages full of RPM's but have not pursued them as of yet.
Misplaced mint marks happen when the mint tech drops the punch by accident on the die. This could be such a case.
OK thank you. This coin in some of my other pics looks like the Working Hub was used for practice ! Lol... I'll send it in for a closer look. You time is much appreciated!
I have to think it is not a RPM, but damage. Stand back and look at that area of the loop of the "9", starting way below up to well above it is a series of straight scratches, indicating a forceful action against the bottom of the loop , shoving it up and then going over it ( 2,3rd, 4th photo of post #1).