The M.1 Sokol (Falcon) was a Czechoslovak light aircraft designed in secret at the Beneš-Mráz factory during the German occupation and put into production in the years following the end of WWII. In 1947, the design was then modified as the M-1C with with a longer fuselage, a third seat and swept leading edges on wing to became the main production variant with 183 aircraft built. This example is on display at the Národní technické muzeum in Prague.