My grandpa passed away last year, and my grandmother told my brother and I to get all of the guns out of the house. We finally got around to splitting them up, and I ended up with this. My grandpa didn't know much about it, so I'm hoping someone here does. I don't even know if it's authentic or a reproduction. What little information I've found about Bitterlich talks about derringers, nothing about a pistol this size. I've got larger, more detailed images if they'd be helpful.