Thanks Rob... The spare cylinders will only work in the '58 Pietta Revolver (on your right looking at the picture), they won't fit the 40 year old Navy Arms (on your left looking at the picture), so that's why I have the pouch on the belt, it has paper cartridges and caps in it for the Navy Arms Revolver.
I only load 5 shots to a cylinder, so with this set up and all cylinders loaded and the paper cartridges I can shoot up to 40 rounds. (25 through the Navy Arms, and 15 through the Pietta), though both Revolvers take the same paper cartridge.
When I was younger, these were a whole lot of fun, and they still are if I'd just find the time to get out and shoot 'em.