
Actually, I've got some experience with faux rusting.
In model trains and boats, I've used scrapings from real rust mixed in and applied to paint to new trains to improve their realism.
For a short time I had a bicycle that I wanted to use for commuting (and not have to worry about the quality of the lock I put on it). It was a pretty nice Bianchi frame with Campy components, and a chromed fork, but wasn't anything super special (started as a cheap garage sale find). Still, once I got done with it, the only reason you'd take a second look at it was to ponder who'd ride such a piece of ****. Even the aluminum components were "rusting". LOL.
That first one is a Wilton Combination vise, but is missing the pipe jaws. That is a GREAT vise, though he's asking above top dollar for something so beaten.
The second one, not so much.
Back to the OP's vise, it's missing the original lever nuts on the swivel. Still, it's a pretty nice vise, but I'd value it at around half of the asking price.