Robertson Aircraft Corp. - Lambert Field - 1928
(photo: George J. Herwing Collection; "City of Flight: The History of Aviation In St. Louis" by James J. Horgan)

Lineup of Robertson Aircraft Corp. airplanes at Lambert Field, 1928.  Occasion unknown.  Compare this photo to the 1925 aerial photo of Lambert Field.  Note that the hangar in the upper left of this photo, with "ROBERTSON AIRCRAFT CORP." lettering, was not present in 1925.  This new hangar is built off the south end of the two original white air race hangars.  The second airplane from the right is Ryan Brougham NC-958, added to the Robertson fleet in January 1928.