Combination weapon incorporating a 5mm or 7mm pinfire revolver with brass knuckles and usually a folding dagger blade. Several variations exist, most of which feature a folding design where the revolver cylinder is held inside the clenched fist when the knucks are worn on the fingers. Most have folding triggers as well. The “Apache” nickname reportedly comes from the Les Apaches French street gangs of the turn of the 20th century. Believed to have been made from late 1860s to early 20th century.