so this canardiere its a muzzle loader doublegun? I was looking for the lever to open the action.
no surprise that in 1845 not anyone trust this brand new breech loader. I am not sure Lefaucheux was real out of the test phase with his pinfire cartridges then. all this stuff realy startet with the London world exibition in 1851.
if you go into the records of the london best gunmaker you find muzzler loader ordered well into the 1880s. by old german books the majority of shotguns on a driven hunt in the year 1870 were still muzzle loader.

happy to see this geting a restoration by good hands. a fine double deserves it.