This 13-month wall calendar covers a wide spectrum of World War I, Golden Age, World War II and later engines, ranging from familiar types such as the Curtiss-Wright R-1300 and Pratt & Whitney R-2000 to rarer types such as the Liberty X-24 and Fiat A-12 bis and even jets such as the Curtiss-Wright J65. Each page features an engine photo, a description and full specifications. B&W; 11"x 8½". #0080123