Based on the serial number and known lists it appears that your revolver was manufactured in 1951 this is several years before model numbers were assigned to guns, that occurred in 1957
However visually, your revolver appears to be a Model 22/32 kit gun of 1953 which started at serial number 101
Prior to 1957 the firearms only had names.
Though it is not uncommon to hear people calling your revolver a Pre 34
An official historical letter would yield the date that your revolver shipped from the Factory and who it to shipped. Prior to computerizing in the 1980s Smith and Wesson only recorded the date of shipment, not the date of manufacturer