DO NOT ATTEMPT TO FIRE UNTIL EXAMINED BY A COMPETENT GUNSMITH!!!!!!!!!!!!!!!!!\
Danger, Danger, Danger
It should be marked on the barrels near the breach.
12 gauge.
20 gauge
100-300 USD
50-100 USD
50-100 USD 50-100 USD
50-100 dollars
1500
much depends on condition and model. rough guess $150-$300
"Gauge" is measured by the inside diameter of the "business end" of the barrel. Make sure it's unloaded first!
Try e-gunparts.com
your value depends upon condition, of course. However, book ranges from $155 to $3 25