![Prop Tips. The Hydromatic Propeller and Constant Speed Control](http://www.underthecoversantiquebooks.com/cdn/shop/products/image_f1923e5c-3d46-4dc1-b1c3-14c77bfe5815_{width}x.heic?v=1667322526)
East Harford, Conn.; Hamilton Standard Propellers, 1943. 12mo. Stiff paper wrappers. Very good. Plastic comb bound stiff paper wrappers with black title to front wrapper. comb binding cracked in 3 spots but binding remains intact and strong. Wear to wrappers includes rubbing and creasing. Text is clean and bright. 48 pages. TECH/110122