thnx BillM,Welcome to the forum.
Well--it's a top break revolver, probably 5 shot, probably either
32 or 38 S&W caliber. Probably US manufacture, but it could
be Belgian or even some other country. You are asking in the right
place--someone will be along with much more knowledge than me
who will know at a glance manufacturer and model.
I do have to ask---why do you think this is a good fit for your
well thank u Bob,It looks to be a .38 S&W revolver, probably made between World Wars, ca. 1919~1940.
Marlin made many of these top-break revolvers for different hardware companies and sold under their brand. The hammer screw and grips look like replacements.
Not military issue by any means, nor likely police issue.
When I was a kid we could buy these from second hand shops or junk shops for around $1.50 to $3.00. No matter the manufacture, we could find or make parts to get them into shooting condition. Learned a lot from those old junkers.
P.S. Both Iver Johnson and H&R made similar guns, but they were marked with their name and address.