Photographic group portrait of people, likely students and staff, in front of the Ryan School of Aeronautics building, Lindbergh Field (present-day San Diego International Airport), California, circa 1920s-1930s. Tubal Claude Ryan is in the front…
Photograph of a man in flight gear with a Ryan S-T aircraft, Lindbergh Field (present-day San Diego International Airport), California, circa 1920s-1930s. A Ryan School of Aeronautics hangar is visible in the background.Inscription on image: "To…
Photograph of a Ryan S-T aircraft in front of a Ryan Aeronautical Company hangar, Lindbergh Field (present-day San Diego International Airport), California, circa 1930s. Stamped on verso: "The New Ryan Model S-T / Manufactured by Ryan Aeronautical…
Photographic postcard of people working on the Christofferson 1914 Tractor aircraft, Lone Pine, California, circa 1914.Inscription: "Christofferson Tractor Biplane / Tuning up / Lone Pine, Cal. 1900 / Forbes."
Photographic postcard the Christofferson 1914 Tractor aircraft, Bishop, California, circa 1914. A man is seated in the cockpit.Inscription: "Forbes / Christofferson Tractor Biplane / Bishop, Cal. 1889 / Dedication of Exposition the Way."
Photographic postcard of people with the Christofferson 1914 Tractor aircraft, Lone Pine, California, circa 1914.Inscription: "Forbes / Christofferson Tractor Biplane / Lone Pine, Cal. 1892."
Photographic postcard of a man, possibly Silas Christofferson, working on the propellor of the Christofferson 1914 Tractor aircraft, Bishop, California, circa 1914.Inscription: "Forbes / Christopher Tractor Biplane / Bishop, Cal. 1878."
Photographic postcard of people with the Christofferson 1914 Tractor aircraft, California, circa 1914. The man standing in the cockpit is possibly Silas Christofferson.Inscription: "Forbes / The Return / 1897. Christopherson's [sic] flight over Mt.…