2mm Kolibri

The 2mm Kolibri
(also known as the 2.7mm Kolibri Car Pistol or 2.7×9mm Kolibri) is the smallest commercially available centerfire cartridge, patented in 1910 and introduced in 1914 by Franz Pfannl, an Austrian watchmaker, with financial support from Georg Grabner. It was designed to accom...

Roth-Steyr M1907

Georg Roth was primarily an ammunition engineer, eventually operating two factories in Vienna and Pressburg (now Bratislava), but he was also interested in firearms. In 1898 he employed Karel Krnka to manage one of his factories. Since Krnka was already an experienced gun designer, the two men so...