That gun was made between 1905 and 1915. The best way to determine a current value for it would be to take it to a gunshop--not a retail store selling guns, but shop that sells nothing but new and used guns and gun accessories--and ask them to set a value on it for insurance purposes. Expect to be disappointed--it won't be much. TexasCharley
Value of any firearm is determined by make, model, condition, and originality. These were not high dollar guns, but there is a modest collector interest. Depending on condition, may be as low as $25, or as high as $200 for an excellent specimen. These are old enough that there is no set "blue book" value. PS- I said that after checking my copy of the Blue Book.
It had to be manufactured between the 1912 patent date and 1915 when the company ceased operations.
Just the barrel?
No
50-100
Weight is the main factor
1901
$600
Try Numrich Arms
Octagonal barrel could be a plethora of different guns anywhere from a rolling block to a pump. Need to identify what it is first and condition, condition, condition for values.
Value of a 1980 Winchester rifle 22 short octagonal barrel?
50-100 usd
10-100 USD or so