Philadelphia: Autogiro Company of America, (n. d.). 1st edition thus, ca 1932. "With the Compliments of the Autogiro Company" card laid-in. [2 (blank)], 94 pp. Filled with b/w photographic images. Royal 8vo. 10-3/4" x 7-3/16". Original blue paper wrappers, with embossed gilt lettering to front cover. Age-toning to wrapper edges. Smattering of foxing. Occasional pencil marginalia. A VG copy. Item #42605
"This book is the second complete authoritative presentation of the Autogiro; what it is, what it does, and how it does it, together with a résumé of its history, development, achievement, progress and acceptance by the public." [Foreword].
The PCA-2 a significant development in aviation progress, being the first rotary-wing aircraft to achieve type certification in the United States, as well as being notable for a number of 'firsts', including the first aircraft to land on the White House lawn and the first rotorcraft to fly across the country.
Uncommon in commerce.