Designed by Friedrich Pfannl of Austria, the Kolibri and its cartridge, the 2.7mm Kolibri, are credited as the smallest centerfire pistol and centerfire cartridge to see production, with the pistol easily fitting in the palm and measuring less than 3 inches long. Manufactured with a notched groove sight on top of the slide, "FEU" and "SUR" safety markings, "FP" imprints on both grips, and "KOLIBRI" on the right grip panel. Included with the pistol is a brown leather "change purse" style case and a small pewter box containing eight rounds of ammunition.