Unless someone has taken up the task of compiling a personal database, virtually all serial number information seen on the Internet is likely from the Standard Catalog of Smith & Wesson, currently in its 5th edition:
The .32 CF DA 4th model was manufactured from 1883 to 1909.
Serial number range is from 43406 to 282999. Serial numbers
under 209301 are considered Antique (source: SCS&W 4th ed.).