Photograph of Joe Crosson's aircraft in a snowy field, Ruby, Alaska, circa 1930.
Inscription on verso: "At Ruby, Alaska / 1930 / 50 below zero / Joe Crosson."
Photograph of Major Frederick L. Martin on the wing of the Douglas World Cruiser "Seattle" aircraft, possibly in Seward, Alaska, circa April 1924.
Inscription on verso: "This could be near Seward, Alaska / Major Martin / Round the world flight of…