The story
Originally established in 1899 by Rudolf Stelšovský and produced farm machineries. In 1922 Stelšovský started producing cars under the brand name, Stelka. It was designed by Jan Švejda. In 1924, it was discontinued due to the lack of interest of customers and the unreliability of cars at the time.
From Wikipedia’s article on Stelka, shared under CC BY-SA 4.0.3