Northwest Airlines Curtiss Oriole

                                       

                                          
                                      Northwest Airways was incorporated on 1 August 1926, as a Michigan corporation
                                      organized by a group of Detroit and Twin Cities businessmen.   It took over Contract
                                      Air Mail Route (CAM) # 9  from Charles Dickenson who had been awarded the route
                                      from Minneapolis to Chicago with stops in La Crosse, Madison and Milwaukee.   The
                                      service was inaugurated with a Curtiss Oriole and a Thomas Morse biplane.  The image
                                      above, from the public domain, depicts a Curtiss Oriole, but I am not sure if it is an actual
                                      one operated by Northwest.