Alexander Graham Bell and Frederick Walker Baldwin with hydrofoil model, circa 1921
Description
Alexander Graham Bell and Frederick Walker Baldwin pose with a model of HD-4, an early research hydrofoil watercraft.
Original Caption: "Inventors with speed boat model. 7094 R - Dr. Alexander Graham Bell and F. W. Baldwin with the model of their unique American Speed boat. The boat itself, H.D. 4, equipped with two Liberty motors, has been in water for the past two years. At present it is off Baldeck, Nova Scotia."