Hercules shotgun info

[skeeter@ccia.com]

I just found a shotgun for free..the only thing on it is the name Hercules on the side and under the barrel is only the seriel number. On the side it says barrel and lug forged in one piece. Those are the only marking I can find on it. I know it is not a 12g. I am thinking maybe a 16 but why would it not say that someplace? I also think Monkey ward sold them back in the 40's....Maybe someone knows a secrete as to where the guage is marked or something? ....thanks.