ALLWAYS, allways let a good gunsmith check any weapon you pick up from anywhere except a brand spanking new one at the store of your choice, Even then you may need the gun smith to really clean it properly, because depending on just what you buy it may have enough grease in it, on it, and through it to completly redo the underside of a 56 Ford.
I'm not sure if he's a *good* gunsmith or not, but he works for a gun manufacturer as a machinist, and gunsmiths on the side. Sounds reasonable to me...and if he approves, it'll be stripped and blued as a Christmas gift. Gotta' start somewhere, right? I'm *completely* green when it comes to this stuff.
As to grease, there is definitely a visible film of grease/oil on some of the sliding parts. Haven't stripped it down, yet. Heck, it hasn't made it into the house, yet!
So, who makes a good holster for this thing? It didn't come with one.