I've often wondered how they kept them on some of those sidehammers.
Given the amount of gunk sometimes seen around the nipples, wax doesn't seem that unreasonable
I would figure caps would fall off this thing with pretty much every firing and turn, a lot of the pepperboxes seem like they would be even worse..most have a shield to help hold them in place, but I've seen some older one's that didn't, kinda wondered if they tied a ribbon around them or something.
Allen & Wheelock Sidehammer Pocket Revolver 28cal