Welcome to the forums from the Wiregrass! I think Jim didn't see the asterisk. Your gun falls in the 1920 era, probably early 1920's. Is there a "Made in USA" stamp on the lower right front of the frame? If so, it was made after 1921. Also, could you post some pictures? S&W made a couple of different models in that timeframe.
(Ah, Alan posted while I was typing.)
This is a .32 Hand Ejector
And, this is a .32 Regulation Police
The HE has a round butt and the RP has a square grip that converts and extends the round butt.