The Austrian Phönix D.III fighter and Phönix C.I scout were purchased by Sweden following demonstrations in Stockholm in 1919. The C.I was manufactured at the air force workshops as the E1/E2 'escort fighter', gaining the telling nickname Dront (dodo). The designations were changed to Ö4 (advanced trainer) and A1 (attack aircraft) in 1926. This airframe, originally delivered with serial 626, was not retired until 1935. After several changes, it then wore serial 693 with a prefix for F1 wing at Västerås - Hässlö. Photo from: Flygvapenmuseum