Iowa City, IA: The State Historical Society of Iowa, 1950. Staple-bound Softcover. Good. Item #062349
Pages crisp and clean; stapled binding secure. Soft cover has two drip stains at the left front edge, scattered specking and foxing across the front, and some wear at the spine ends, but remains overall sound. 40pp., illustrated in black-and-white. The Evolution of Farm Machines; lead article, 'J. Brownlee Davidson' by William J. Petersen.