Douglas
The only proof? mark, I can find is on the right side of the frame,below the front of the cylinder. It is a circle with 2 capital J's in it. A few numbers are stamped seemingly randomly under the grips and very small stamps on each cylinder chamber.Would be fun to know the guns origin.

Will try to get a close up pic.Today I just had a eye injection and my focus is not so good!
As far as my family is concerned.I come from a long line of collectors,hoarders and pack rats. I try not to be that way,but it must be in the blood! My lovely wife is constantly questioning this behavior,I just tell her its genetics!

Thanks for the help!
Bob