The grip angle and design looks very Merwin Hulbert. I wonder if the Grand Duke Konstantin Nikolayevich Merwin, still in the Russian naval museum, was presented before this gun was made and was the reason for the grip angle. A picture of it is on my Merwin Hulbert facebook page. I found it on a Russian site a few years ago. https://www.facebook.com/pages/Merwi...56673537709954