Disk was a Czechoslovak automobile brand associated with Ceskoslovenska Zbrojovka, a.s. of Brno. The arms factory that produced it had been founded in 1919, and when demand for firearms declined in the 1920s, the company turned to the manufacture of passenger cars. The first model, known as the Disk or Diskos, was designed by Bretislav Novotny, who was also known for his work on Aero cars. This model served as…