Aside from the flat rib/concave standing breech top,,,the lettering doesn't look quite right, style wise.
The duplicated border cut on the flat top rib to match that on the bbl is different, plus it is missing it's outside single line cut.
I'd like to see a better look at the bbl matting itself.
The normally seen very fine, uniform dot matted LCS style isn't there
What you can see of approx 1/4 to 3/8" of it ahead of the gold bar looks hand applied, single point struck dots.
Perhaps an attempt to cover an area of matting struck off or damaged. But I'm only seeing a very small area....
A 'new' bbl from the factory would have had any 'repaired' matting would it?
The colors look too new in the pics,,especially the lock plate.
Any sign the engraving has been polished over,,even with a fine wire wheel to gain some brightness and not effect the feel of the cut.
The tiny main spring positioning screw poking through the rear area of the plate has that polished yesterday look.
The sear screw and the hammer axel both have some blue/grey color on them with a bit rubbed off. The axel has some full rotational strike marks to it's end. Not the type of wear marks that easily end up there once it's assembled. Especially on a gun w/o any wear to begin with.
Is that just a shadow around the upper edge of the lock plate/wood fit? Or is that a bad gap there.
Just some observations...and just from a couple of pics.
As always,,lots of looking and questions when a high dollar item is in play.