Finding parts will be a challenge since the company was in business in the late 1800's. Value, if in working conidtion, would not be more than 50-60 USD.
Try e-gunparts.com
No.... If the bolt hasn't been replaced, the serial number will be on the bolt. You can also find one on the barrel under the fore grip if it isn't apparent on the barrel where it mates to the receiver, and on the receiver its self. Remember that all weapons are required to have the serial number stamped on all removable parts (major parts)
Highly unlikely
Typical Crescent single-barrel shotgun. I have a good supply of parts. sales@countrygunsmith.net
yes
The three parts of the continental margins are the Continental shelf, the Continental slope, and the Continental rise.
Check with a local gunsmith. Parts from a J. Stevens single shot should fit. Numrich may also be able to help you.
depending on what parts you kneed a good gunsmith can make the parts you need.
Proofhouse.com has a store brand chart that might help. Try gun shops, gun shows, e-gunparts.com and want ads for parts
numrich
how much is a 1913 16 ga. single barrel j. Stevens worth
A barrel does not have parts per se. You can have sights (front and rear) on a barrel, but the barrel is usually one piece, sometimes two.