I just went through all the pictures of it and it seems to be genuine, but I wouldn't lay hard cash on it. The barrel appears to be a Remington barrel as the muzzle turning is one of the normal 'aspects' of a Remington 'trade' barrel. This is OK as most makers used barels from one place, locks from another, etc, etc.
: This might have been a "Special" order as it really doesn't 'fit' with the plains rifle Typical Hawken pattern. It might also have been stamped by someone else to increase it's value, way back when. This type of counterfitting was also common.
: It's certainly an interesting piece & the barel length appears to be genuine full length & the forewood looks funny as it's all out of proportion.
; There are too many 'perhaps' this, perhaps that, in this deal, for me.
; I'm also no expert on this.