If I am reading the year of manufacture correctly, that would make it a 1900 gun. What a gun is worth is very difficult for even the experts (I am a novice) here to determine. Other markings, guage, barrel length/have the barrels been cut, grade and lastly condition all figure into the value of any gun. I do not mean to sound flippant but what it is worth is whatever you can convince someone to pay for it on any given day.