Great 1950's era signature of Jimmy Doolittle!!!
Most Doolittle signatures found are from the 1990's+
Harold "Jimmy" Doolittle USAF (December 14, 1896 – September 27, 1993)
was an American aviation pioneer.
Doolittle served as a general in the United States Army Air Forces during the Second World War,
after first earning the Medal of Honor as commander of the Doolittle Raid while a lieutenant colonel.