jimicarpenter:
That gun was manufactured in 1945. It is either a .38 Special Victory Model, or a .38 S&W British Service Revolver converted after World War II to .38 Special. It should be stamped US Property.
If it has been chrome plated, the stampings are not centered on the barrel, or there are two distinct steps in the cylinder, it is proof marked with crown or there are lend lease markings, ten it probably a converted BSR, many were bored out to .38 Special and sold as surplus in the USA.
If it hasn't been molested then its probably a US issue Victory Model. These were basically the same gun, except for the caliber & barrel length.
Either way, your gun is one of the last produced during the war. The Victory Model run ended at SV811832 & the BSR at SV811119.
The S in front of the serial number stands for Safety, the V for Victory. In 1942 the S&W stamping machine clicked over to 999999. So they added a V in front and reset it to 1. In 1944 there was a fatality with a dropped gun when the internal hammer block failed. A new positive hammer block was designed and implemented, in some case retrofitted. Hence the S stamp added in front of the V.
After the war, with victory achieved, the V was dropped and the S remained until serial number S999999.