The Daimler L20, later known as the Klemm-Daimler L20, was one of the first light aircraft to be built in significant numbers. A two-seater with an engine of only 20 hp, it demonstrated the ability of
Klemm
…Klemm aircraft included: Klemm (Daimler) L.20, light leisure and training aircraft, 1924 Klemm Kl 25, light leisure and training aircraft, 1928…
Daimler L 20 photo from Aero Digest January 1927
L20 (partial replica) in the Mercedes-Benz Museum in Stuttgart