Take the grips off #1
List the number on the bottom of the butt section.
That gun was made between 1937 -48 going by that style ejector rod.
It will be a military and police model of 1905 4th change.
But you can call it a pre model 10 if it's easier.....lol
I just picked this one up and I'm pretty ignorant about them.
It appears to have the experimental ram rod bayonet?
Can 405 grain factory jacketed bullet ammo be used ?
The bore is great.
Basically any help is appreciated.