Aren't these 19th century little pocket pistols cute? This is another palm-type hideout gun, named the Little All Right and patented in 1876. It's actually a pretty basic revolver mechanism, just put into an unusual style of body with a strange trigger. It holds 5 rounds of .22 Short, and fires double action.
Only a few hundred (perhaps a thousand) were made, which is understandable once you handle one. While the gun is small, the reach to the trigger is actually quite long, and the trigger itself is rather heavy. That combination would actually make it a bit difficult to shoot. It also forces you to wrap your hand around the cylinder gap, which couldn't be too pleasant when shooting.