Ah yes, I found it. That's a Japanese Bess, made by Miroku, and sold by Lyman. It looks in very good shape.
BTW it also, "Comes with a reproduction bayonet that was made in India which fits the gun well, as well as the bayonet scabbard and sling."
So they normally back then didn't come with sling swivels or the holes drilled for them, and no sling, and you get a bayonet and scabbard too. So with shipping $840 total would be the top price that I'd offer to buy it with no images of the interior of the bore and no mention of an "inspection period" to check the bore. IF the bore is really good it might, just might, be worth $50 more...so it's priced about right (imho).
LD