thats real ugly...
I have TWO pm9's one is in the 3k serial # range and is flawless has no marks what so ever.
The slide is nicley finished there are no machine marks anywhere and it has a frosted like finish. I put 300rds through it then put it in the safe.
My second is the one I pocketcarry daily it has Novak nitesites and is in serial #1k range and also does not have any of the above flaws, There is a very noticeable difference in slide finish though, This piece shows some faint mill marks in the rear serations and is just plain stainless with out the frosted like finish...