Good lord, these old-school gun-makers were not messing around. This 1875 Apache Revolver is basically the trifecta of weapons, boasting a knife, six 7mm cartridges, and brass kunckles for a handle, just in case the first two weren't enough to send a message to whatever unfortunate person was at the other end of this beast.
According to YouTube user GunOwnerDan (a little on the nose, don't you think?), the tool hails from Belgium, and there were only about 7,000 of them ever made. Get a full look at the little devil below.