I assumed that the JDH barrel set was the original. I thought that the configuration difference of the JDH barrels was just because of the different bore sizes of the other tubes. But, I hadn't noticed that there is also a difference in the length of the flats. Guess I've been too focused on cleaning up the crumby photos for posting, to actually look at the gun.
The owner took the gun to a gunsmith to have it checked out and hasn't picked it up yet. I told him to take some more pictures of it and measure the chambers to find the bore sizes. I'll tell him to get a good shot of the fore end.
I know he will try to sell it soon. It would be nice to learn more about this unusual gun, before the piece disappears into another collection.
