Unusual shotgun

[WV_gunner]

My friend just got a shotgun, trying to identify it. The name on it isn't the manufactures name. The gun is exactly like this one.

http://www.gunauction.com/buy/11109293/shotguns-for-sale/single-shot/western-arms-12-gauge-shotgun-s3

[PetahW]

It looks like a Hopkins & Allen/Davenport that's had the barrel pin key gone missing.

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