Smithsonian Archives
Glenn Hammond Curtiss (1878-1930) and Albert Francis Zahm (1862-1954)
Walcott, Charles D (Charles Doolittle) 1850-1927 · 1914
Printed on verso: Dr. Albert F. Zahm / At Hammondsport, N.Y., during tests of large Langley plane, in May and June, 1914. / Glenn H. Curtiss (left)
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