It looks real Japanese copy to me. The proofmarks are only "similar" to British or European proofmarks. None match real proofmarks. The engravers have not commented, but the engraving is "showy" , but not refined. It looks like a Japanese copy of a Webley and Scott, as many of the Japanese guns are copies. I do like it, but that is what I see.

http://www.bakercollectors.com/