mid 1890s makes sense considering the style of the gun.
Any loading information that might be on the gun such as "6 drams powder, 560grs bullet" would be very helpful in determining the intended use.
I would say this would retail in the US between 6 and 12k, depending on the sales channel used (auction, retailer, direct) and the item's specifics. Expect to get less than that (commission, etc).
Import in the US would not be too bad, except that there is no formal proof for the date of manufacturing (such as a maker's letter).

Good luck with this!
WC-