Carl Bendtzen with his sons Johs and Sven produced the first machine in 1926. In the following years Atlanta Motorfabrik in Kristiania produced three models, two with Villiers engines of 172 and 342cc which were joined in 1929, the final year of production, by a 500cc JAP machine. In total 21 motorcycles were built, some of which were based on components supplied by the Sun firm in Great Britain.
Carl Bentdsen also had a patent for an "injection device" for two-stroke engines (no. 29712 1917), and he is mentioned as having raced on the Bjerkebanen with his own motorcycle, where only the rims were of foreign manufacture.
Sources: Norskproduserte Motorsykler; digitaltmuseum.no.
