The Moore patent “teatfire” revolver was one of the more (no pun intended) successful workarounds to the Rollin White patent. Designed by Daniel Moore and David Williamson, the gun was a 6-shot .32 caliber pocket revolver which used a proprietary type of cartridge. It was loaded from the front, and the rear of the case had a nipple in its center full of priming compound. This allowed the rear of the cylinder to only have a small hole through which the hammer could reach to hit the nipple and fire the round, as opposed to a rimfire design in which the whole rear of the cartridge had to be exposed at the back of the cylinder. Some examples, including this one, included a unique type of extractor for pushing out spent cases.