Breechloading Wheel Lock

I have some photos of a pretty cool firearm today, although alas I have very little information about it. It looks like a more or less typical wheel lock, missing several parts…

Breechloading wheel lock
(click to enlarge)

On closer inspection, however, one finds that the breechblock opens up to the side like a Snider:

Breechloading wheel lock action open
…and here at the back of the action is the locking peg that keeps the breech closed.

The decorated latch on the back of the receiver pulls backwards to unlock the breech and allow it to open. I don’t know if this was intended for a complete paper cartridge or if one was supposed to load a loose ball and powder in the breech, or if the ball was to be rammed from the muzzle and just the powder loaded from the rear. I also don’t know if the bore if rifled or smooth.

Breechloading wheel lock action open
Note square recess in back of breechblock for locking plug

 

Breechloading wheel lock top view
Note locking peg at the rear of the open action. It is rounded to that the breech can be simply snapped shut, but will not open unless the thumb catch on the receiver is pulled rearward.

Breechloading wheel lock