I have a copy of the "Husqvarna Hagelvapen 1877-1977", which covers the gun making history at Husqvarna. The author does have a serial number listing, but, as others have said, it starts with serial number 16928 in 1884. So its not much help in dating your Model 17. What type of hammers does your Model 17 have? And is it a pin fire or centerfire?