Photograph of S. A. Shumovsky (left) and Claude Ryan (right) standing with a sealed barograph taken from a Soviet aircraft following its transpolar flight, California, circa 1930s.
Typed caption on album: "End of dramatic flight over North Pole to…
Photograph of Soviet Air Force servicemen and representatives with their American hosts at a banquet in San Diego, California, circa 1930s. From left to right: Acting Consul General Grigori Gokhman, S. A. Shumovsky, Colonel Mikhail Gromoff, J. L.…