Impossible to answer without more information.
www.diamondgunsmithing.com - This guy worked for Ithaca, supposedly the best. www.stephenolin.com, this guy did the engraving for them. good luck
i have one with a serial of 39667 how much would it be worth
nitro hunter shotgun single barrel with exposed hammer stamped belknap hdwre and mfg serial 5516
Impossible to answer with information given. No make, no model, no condition?
Double barrel? Single barrel? Model? Need more information in order to be able to answer.
Check the barrel and receiver
With the serial number that you provided,your Ithaca double barrel shotgun with the damascus barrels was produced in the year 1900.
Without knowing the maker or the markings on the barrel/breech, you can't find out anything. Even then, there may be little to no information.
Check out gunshop.com,they got Lots of info on dbl barrel shotguns.