Yours was originally chambered in .38 S&W caliber, NOT .38 S&W Special. Therefore, it was originally made for the British Commonwealth military, not for the U. S. military or for U. S. civilian service. It should also have a United States Property stamping on the top strap. It has obviously been nickel plated, which was not done at the factory. It is also highly probable that the chambers have been reamed out to accept .38 S&W Special cartridges, and the barrel may have been shortened, as most of the original British contract barrels were 5". Yours looks to be shorter. In the years following WWII, a very large number of the British revolvers were so modified and sold very cheaply on the U.S. civilian market by mail order until the late 1960s. All defects taken together, the value of yours is minimal, except for possibly the grips, only if they can be identified as Tuskoid.