• 65 letters, 215 pp. (manuscript & typed), plus over 1,000 photographs, manuscript history & biography, and approximately 50 pieces of paper and manuscript ephemera, dated 1898-1966. Correspondence includes letters of aviation pioneer Laurence B. Sperry, his father inventor Elmer A. Sperry, other…
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  • quarto, 2 pages, formerly folded, neatly inscribed in ink, foredge of first page browned, otherwise in very good, clean and legible condition.
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