old farm gun from CT needs ID help

[dyenen dyenen]

Hello,
can anyone help me to identify this gun i have no clue i can not numbers but there are a few marks . there is a circle wit what looks like an LLG and a star in it, there is a 17.0 an arrow and some c marks i have attached photos
i just do not know where to look, i found this under the floor in our farm house which is about 200 yrs old

THANKYOu

[George Lander]

What you found is most likely a Belgian made shotgun. The LLG is most likely ELG which denoted Liege Belgium production.

Best Regards, George

[Eldon Goddard]

Could you get a picture other than just the butt plate?