Transcontinental & Western Air Northrop Delta 1-A  (N)X12292    (c/n  3)

                                    

                                        The Northrop Delta was basically an enlarged Gamma with accommodation for 8 passengers.  It
                                        was introduced in 1934 but unfortunately a series of crashes right after, or during its certification,
                                        resulted in a government edict prohibiting the use of large single engined airliners on the routes of
                                        trunk carriers (of which TWA was one).   In the event the above aircraft was the only one delivered
                                        to the airline, the others becoming executive transports (which weren't bound by the stipulation).