Each of those numeral
2s on your gun means something different.
The
2 on the bottom of the barrel lug indicates the frame size of the gun --
98974 01 12-gauge, Quality GH,.jpg
the center to center spacing of the firing pins 1
2/16-inch.
The
2 above the serial number on the watertable of the frame is the Grade of the gun --
98974 02.jpg
The
2 beneath the serial number on the forearm iron indicates it is the forearm for and number 2 set of barrels.
98974 03.jpg
The number 2 set of barrels should have a numeral
2 stamped on the bottom of the forearm loop like this gun --
102660 03a 26-inch VULCAN STEEL, 2 annotated.jpg
Threaded Mode