The .32 Self Loading Model was in production from circa 1914 to circa 1924. Approx. 34,000 +/- 500 were produced. That serial number was produced, based upon the production span and a good guess, around 1915. Yours is a 2nd Variation and will/should have 16 lines in the slide grip area (serrations). Condition is everything - current RETAIL SELLING prices range from $375 +/- $50 in excellent condition, down to around $200 in fair condition. Several years ago, excellent condition pieces were routinely selling for in excess of $400 - this is where I would valua the piece for insurance purposes.
Jim Hauff, H&R Collector and Contributing Editor for H&R Firearms to "THE BLUE BOOK OF GUN VALUES" by S. Fjestad