Manufactured by Richter & Kroboth Motorfahrzeuge, Šternberk, Mähren, from 1924 to 1926.
The firm built light scooters powered by Villiers 147 and 172cc two-strokes.
Gustav Kroboth was a keen motorcycle racer who piloted Roconova motorcycles. Sternberk was home to the Ecce Homo racing circuit, discussed in Die Großen Rennjahre 1919 - 1939 by Erwin Tragatsch.
After the war the German-speaking population of Sudetenland, which incorporated Sternberk, was expelled. Kroboth moved to Bavaria, and there he produced Kroboth scooters and microcars.
Sources: Tragatsch p261; en.wikipedia.org.
