I saw this, can't afford any more guns for a while, and got it as fast as my fingers could pound the keyboard.

It is a Nagel & Menz, Hofbuchesenmaker to Kaiser and King Strasbourg U Baden drilling from 1887 and bears a noble's crest.

It's 16ga and possibly 10.5X47R, and the bores are mirror.

More PIX

I did some research on the rifle round, if it is in fact the 10.5X47R. I can squeeze some brass out of 45-70 brass with a bit of work, I think.

What a beautiful gun. How do you select to fire the rifle barrel on a hammer gun?
C.G.B.

The right hammer is hinged, so it can be positioned over the rifle striker to the left of the shotgun one on this particular design. It's a simple way to select the barrel, but it requires delicate machining.

Very interesting and pretty clever. The firing pin angle on the rifle barrel must be pretty acute.
C.G.B.

Well done. Congratulations.