WILTSHIRE ARMS CO was a tradename used by a New Orleans catalog/hardware store in the late 1800s. Shotguns with that name will either be Belgian in origin (look for the E over LG proofmarks under the barrels), or domestically made by Stevens.
Not enough information.
Impossible to answer without more information
Impossible to answer given the information presented.
No published data
Impossible to answer without more information.
Impossible to answer without knowing who made it.
No way to value with only the serial number and no other descripitve information.
Go here - http://www.wwgreener.com/
about $100
Impossible to answer with the information given. Who made it? Is it a rifle, pistol or shotgun?
this gun is very dangerous so use it wtih care.
The Winchester Model 12 16 gauge shotgun, with serial number 1779186, was made in 1918. This is according to the information released by Winchester.