Unfortunately the S&W is post WWII manufacture. Very few of these post war transitional M&Ps shipped in 1945, so it probably shipped after that. The "S" prefix in the SN denotes the updated (at that time) hammer block safety. A pre war 1905 4th change does not have the revised hammer block safety, and therefor does not have the "S" prefix to the SN. We call this M&P that you bought a "post war transitional" version because while it is post war, it has the S prefix, the older long action, one line address, etc. These post war trans M&Ps were made in the late 1940s only and are uncommon, esp as a snubnose. Also, the grips are incorrect, they are for a much earlier M&P, approx. 1912 to 1920 production.

__________________
}-----Jim----->
~SWCA #2732~