I wasnt very helpful on your other question. If you Winchester is a pump, not a semi automatic, Im going to guess it is a model 12. From what I can find on the internet the serial number you posted was made in 1914.
I got that from here.
http://www.mchenry-sc.org/Engineering/Model_12.htm
Value will depend on condition. Tell us more about the gun. rusty? wood beat up, any cracks. What is on the butt, a pad or a butt plate. How long is the barrel, is the bead still on the end or has it been cut?
If you go to a site like gunbroker.com and type in winchester model 12 you will see how many variations there are, and how the values people place on them differ.
Keep in mind that some of those guns may have been listed on there for months because the asking price is too high.