The Canon de 194 mle GPF (Grand Puissance Filloux - High-Power Filloux) - was the first French tracked self-propelled gun (SPG). Designed at the end of World War I, it was a pioneering weapon with many modern features. The vehicle was designed in Schneider's Le Creusot works. It was originally planned to arm it with a 155 mm gun but a weapon of 194 mm was eventually chosen. Compared to its contemporary British SPG, the Gun Carrier Mark I, the Canon de 194 was much more advanced; it was driven by only one person, had hydraulic brakes and the gun had automatically adjusting recoil mechanisms and pneumatic recuperators Designer M Bergman