Ian of Forgotten Weapons and RIA shows us a rather rare shotgun by Andrew Burgess. It is a 12Ga shotgun that folds for concealment. On top of that he designed it to be a pump action. Due to patents on existing pump actions, Burgess designed his pump action around the grip of the gun. Sort of like a hybrid of a pump and lever action. The grip is a sleeve around the wrist of the stock. The shooter would pull the grip sleeve rearward there by opening the action and push it forward to load the chamber.
This shotgun was made around 1894 and was not as popular as the Winchester. It is a very interesting design that you do not see often.