 1 Gorst Air Transport. Keystone-Loening Air Yacht. NC 9728. On the dock.
|  2 Gorst Air Transport. Keystone-Loening Air Yacht. NC 9728. Entering the water.
|  3 Gorst Air Transport. Keystone-Loening Air Yacht. NC 9728. Returning to dock.
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 4 Gorst Air Transport. Keystone-Loening Air Yacht. NC 9728. Dock scene with crowd of people.
|  5 Gorst Air Transport. Common back for the four previous airline issues.
|  6 Gorst Air Transport. Keystone-Loening Air Yacht. NC 9728. "Alaskan" First passenger amphibian plane to cross the Gulf of Alaska. Photographer H. W. Steward.
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 7 Gorst Air Transport. Early back without stamp box.
|  8 Gorst Air Transport. Keystone-Loening Air Yacht. NC 9728. Landing at unknown location in Alaska.
|  9 Gorst Air Transport. AZO 4 squares stamp box on back.
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