Can anyone help me identify this shotgun?

[barichman]

I found this musket or shotgun in my father's office. I need some help identifying it. Thanks. 3277932780327813278232783

[keith smart]

Well, it's not military. Looks to be a European trade gun, proofs may be Liege. I don't think you hit the lottery.

[musketshooter]

Typical English low end single barrel ML shotgun. Worth about 100-150.

[barichman]

Thanks. Any way to tell how old it is?

[Sunray]

Put some better light on the side plate where the letters are.
It might date to the 1850's, but more likely to be a bit later. Might be dates under the stock.