Which model? Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value. Recommend taking it to a gun shop for appraisal.
70-700 usd
50-575 usd
On the bottom of the receiver forward the trigger
It should be marked on the barrels near the breach.
yes sir
Based on description 100-500
700.00 dollars
Impossible to answer without a detailed description of all features and markings.
50-800 usd
50-500 usd
Check the auction sites. To many variables that you don't address, like gauge of extra barrels, length of barrels, overall condition, accessories, box, manual, number of rounds fired, etc..
No