I have contacted Bachelder's, and their ball park estimate (without having looked at the gun) of $400-$600.00 seems reasonable.

I do appreciate the help.

And am I correct in assuming that the blacked barrel flats are reasonably conclusive evidence of re-blacking? Does it, perhaps, also point to hot caustic blue, or is that a strech?

I am trying to understand why 10-12" of both ribs are loose. The gun looks to have had only limited use...

Thanks