Standard model, plain barrel. I picked it up a couple of hours ago. There are some scratches on the receiver and a few scratches on the stock - the sort of things that you'd expect to see on a 50 year old gun that's been used, but it's honest wear, definitely not abuse. No rust, no dents, just a good old huntin' gun.
Here's a bad picture:
The poly choke isn't original - the barrel is marked as a Full choke, but just looking at the appearance of the lettering on the choke, I'd say that it's probably about as old as the gun itself.