Rockwell (Aero) Turbo Commander  N9004N              (c/n  unknown)

                                

                                     The Turbo Commander was basically a 680FL Grand Commander re-engined with twin Garrett
                                     AiResearch TPE331 turbo props.   These were later produced by Rockwell as the Turbo Commander
                                     681, although this early example was not so designated.   This machine with the somewhat italicized
                                     rego was at Santa Monica  in 1965.