Now I hadn't thought of that!!!! I'll get a sniping bid set immediately.
Did you catch the part about how the right barrel is "flared" at the end? I'm assuming that means it's got a bit of a bulge to it. And the rib is just a little loose, just a little.
I can't imagine what the deal is here. I guess somebody must have needed a top rib for a set of Smith barrels and managed to horseshoe on one from a Parker.
I've gotta say, I'd sure like to see this Rube Goldberg set of tubes in person.