FWIW I'd say it's not refinished. The S&W stamp is sharp, the cylinder stud is similarly sharp edged and the back of the recoil shield - has just the right lines to it too.
Not in this photo, but the ejector rod bolt seems to be a bit too proud up front. I'd want to make certain it's properly fitted and holding in solid.
Yes, dsf... I noticed the locking bolt is "proud," as you too saw.
I suspect the locking bolt spring may be compressed (stuck) and in need of a drop of oil to return to "rest."
Hopefully, it'll be there in the morning!

