It does have the U.S. property stamp. I haven't fired. The owner says a 38 spl case swells when fired in it. I suspect the conversion not so hot
Thanks for the info.
I tried to figure this out by looking in my Standard Catalog of S&W and think it is a 38/200 British Service Revolver from lend lease era but no sure.
It is a hand ejector
Serial # V 52120
38 S&W Ctg on barrel and 38 special cartridge under thumb piece
5 in barrel
Fixed sights
N+Z 6444...