Holy Cow!
As for the case's history (and the gun), this is all I know:
My parents neighbor says he took this gun as security for an $80 loan decades ago from someone in central Kansas. The person never paid him back and he moved to his present location with the gun over 26 years ago, exactly how many years, I don't know.
Thanks again for taking the time to offer your thoughts.
That rifle was a good piece of 'security deposit'
Today it's worth thousands.
Wish it was sitting on MY kitchen table right now!
As for a re-barrel - you're going to have to get the proof marks up for us to see - and show them clearly.
That's the markings on the barrel flats and the action flats.
All of them.
That and it'll be important to take a chamber casting and also to slug the bores.
If you haven't done either before, speak up now and you'll get a little walk-through on the process.
The objective is to get a positive example of the chamber cavities and a positive example of the bore/groove from which to take measurements.
That's necessary - and whether or not one thinks their double rifle has or hasn't been screwed with, it's the best first step to take before attempting to load for it or to fire it.
On the 38-55 VS the 360BlackPowderExpress, they're different cartridges, and it's just not likely that you're going to find a British express double rifle like this one originally set up for the 38-55
Not likely at all.
I wish I were in the position to stick my foot in the door of a negotiation to buy that rifle.
It's a sweet looking light express rifle, and someone's going to have a great affair with it as soon as it gets set up to run again!
Cheers
Tinker