Photograph of William E. Boeing (left) and an unidentified man with Boeing's Martin Model TA Hydro seaplane, Lake Washington, October 21, 1915.Inscription: "Our return from flight over Seattle 10/21/15."
Photograph of William E. Boeing's Martin Model TA Hydro seaplane in flight over Lake Washington, October 21, 1915.Inscription: "Martin Seaplane - Lake Washington 10/21/15."
Photograph of William E. Boeing's Martin Model TA Hydro seaplane in a tent hangar on Lake Washington, Washington State, circa October 1915.Inscription on verso: "Return to Dr. Drew."
Photograph of William E. Boeing's Martin Model TA Hydro seaplane taxiing across water, circa 1910-1919.Inscription on verso: "Original airplane of W.E. Boeing. Purchased from Glenn L. Martin."Stamped on verso: "Enlargement by Eastman Kodak Stores."