Marks, I'm not the guy to ask about dealing with "orphan" gun stuff, having mis-spent much of my life running an orphanage for it....

I once bought an "H.H. Heiser, Denver" holster for $10 bucks in a garage sale. Discovered it was for a 4 1/2" Colt "New Service" (NOT 5 1/2" nor 7 1/2"!). Just couldn't stand the poor little thing sitting there looking unfulfilled. $550 later, it was full, fat, and happy and I had a .38-40 nobody else wanted. Still have the happy couple and it's still 4th of July every time I touch that big Colt off!

And then there was the full box of "SA" headstamped .25-20 WCFs.

"Don't do anything I wouldn't do" is lousy advice, but the best I got....