The Pre-Model 10
Serial number S811120 began in 1945. Some aficionados say the S prefix began as early as December 27, 1944 around serial number S769000. Almost certainly, at serial number S990184, on April 7, 1948, the short throw hammer was introduced. On March 22, 1948, the serial number prefix was changed to a letter C and began anew with C1. The Pre-Model 10 officially became the Model 10 in 1957 with the assignment of model designations by Smith & Wesson. This example, S8419XX sports an uncommon five inch barrel and it's original diamond magna grips. I purchased it off a pawn shop shelf along with it's holster for $89. It is an excellent shooter.