aircraft engine

Le Royaume de l'Air, or the “Kingdom of the Air,” was published in Paris in 1909, during the first decade of machine-powered aircraft flight. It was written for young readers and includes plentiful illustrations and photographs documenting the historical development of aeronautics and contemporary innovations in this new technology. There are very few copies in libraries, and the Smithsonian is fortunate to have two in its collection. This copy is in need of extensive preservation treatment.

What is an aircraft book doing at the national postal museum library? Airplanes have also carried the mail—and continue to do so. The golden age of private aircraft spanned the end of World War I to the start of World War II. During these years of temporary calm, aircraft engineers made significant technological advances, producing safer, stronger, and faster aircraft. Many of these innovations appeared in aircraft made for the private market.