The grip is made of deer horn grip embellished with a silver ring-nut. The extracting the grip releases a six-barrel pistol (5 mm cal.), with grooves, similar to the pepperbox barrels, also marked “PARIS A J BREVETE” at the base. At the front, among the six barrels, lies the stiletto blade.
Another drawing in my “Characters vaguely from the early 20th century with some sort of weapon” series. (The revolver here is the Webley-Fosbery Automatic Revolver, which is a really interesting design!)