The World in the Air, Francis Trevelyan Miller (signed by author), 1930, in two volumes. This set 110 out of 500 also signed by Henri Farman who made pre-war WWI flights and built aircraft for France and England, Louis Bleriot who in 1909 made the first flight over the English Chanel, Glenn Curtiss the owner of the Curtiss Aeroplane and Motor Company, Arthur Whitten Brown who in 1919 was a navigator for the first transatlantic flight, B. Herbert Scott who in 1919 commanded the R.34 first transatlantic airship flight, Hugo Eckener who in 1929 commanded the first around the world airship flight, and Charles Dornier a German aircraft designer including twelve engine Dornier DO-X. As found.