1910 With A Dropped/Misplaced Number?

I think it's PMD. It looks like someone tried to pound a hole into it or perhaps shot it with a BB gun.

The displaced metal made the circle. It probably got worn and smoothed out a bit over time/circulation.

Well -- I've seen BB's suggested here before. I think it used to be part of the rodeo shows -- shooting silver dollars in the air. So, I can imagine kids going home from the show and trying the same thing with their BB guns. BB's are pretty small but I really don't have any experience with examining impact results so I couldn't say if the size is right for that to be the case.

I can always hope it to be an error, but am realistic. As for it being a good find, I've actually been lucky enough to find a couple 1910, a few teens and 20's as well as 30's. Even found 6 mint 1953d wheats, 3 being in the same box. I do believe a young kin of a collector that passed away found it and just cashed it in as "loose change" I have been finding anywhere from 25-40 wheats per box and many old Canadians, king George V was on a few and VI was on the majority. Thank you for the info, I am certain I will be posting on here more as I go along. Plan to start checking 2 boxes a day.. :)

Actually it is not which made me question it.. that was the first thing I looked at. I have a coin loupe as well and can swear I see a T in the middle of the O, but could be just seeing things.

The area affected on the reverse would be near the end of the right wheat stem:

It shows what I needed to see. So it was a soft punching damage on that area. If it were like from a metal punch, then it would transfer to the reverse:

Note the raised bumps on the reverse opposite the damaged obverse.

I guess the best question is to ask how during the normal striking process could this happen. I guess the answer is that it couldn't from what I can see. So it must be PSD. (Post Strike Damage)

Something I forgot to mention is that the side of the crater is dished upwards from the hit. It this were a mint error, then this would not occur. Like if you coin was struck through wire, you would see the rounded trench with blunt ends, but would not see the sides of this raised upwards.

On your coin you can see where the metal moved outwards and up a bit on the edges. Note the ring higher than the fields. That would not be there if this were a mint error.