The Helicopter by Colonel H. F. Gregory
1948. First Edition Thus. 271 pages. No dust jacket. Blue cloth. Contains black and white photographic plates. Clean pages with mild tanning and foxing throughout. Tightly bound with faint thumb-marking throughout. Pencil to rear endpaper. Boards have light shelf-wear with corner bumping. Moderate tanning to spine, which has mild crushing and wear to ends. Notable scratching and marking to boards. Mild water droplets to boards. Book has forward lean. Boards are mildly warped.