With such a great description, I can safely say it was made sometime between 1850 and today! A serial number alone tells nothing about a firearm. A few manufacturers have given a unique serial numbers to every shotgun they produced, many use a set for each different model, and most did not use serial numbers at all until it was required by the GCA of 1968. In addition, serial number lists are only available for the major manufacturers. If you can give the manufacturer's name and the model number/name, we may be able to give you an answer.
50-100 USD
I found mine under the barrell. You will need to remove the wood under the barrell in front of the triggers.
It should be marked on the barrel or reciever. If not, take it to a gunsmith
No published sn data
what is the value of a Hartford double barrell 12 gage shotgun with duel over head hammers great condition
Diamond Arms single gauge serial number 49885 what gauge is it and when was it made plus value if in fair condition?" Diamond Arms single gauge serial number 49885 what gauge is it and when was it made plus value if in fair condition?" "Diamond Arms single gauge serial number 49885 what gauge is it and when was it made plus value if in fair condition?"
Impossible to answer since you did not provide the serial number.
Your Stevens model 9478 single barrel shotgun was made from 1987-1988.The value is between 60-85 dollars in the condition that you describe.
what is the value of a fox double barrell 12 gauge shotgun ser#26151 A
Moderately priced and same quality
Value seldom exceeds 100 USD
50-100 USD