Rare Blunderbuss with folding bayonet

[fernando]

Originally Posted by Marcus den toom

...This one and only this one, as far as my research shows, has the bayonet on the right side of the barrel...

Just for your info ...
There are more, although not necessarily with the same brilliant type of mechanism.
In catalogue #7 of Andrew Bottomley there was a pistol by James Forest (1830) with a spring bayonet, activated by a catch on the right side of the frame.