Iowa City, IA: The State Historical Society of Iowa, 1969. Staple-bound Softcover. Very Good. Item #042395
Pages crisp and clean; stapled binding secure; no owners' marks. The cover is gently faded at the left front and has some smudging along the left front, right rear, and at the lower right front corner as well as chipping at the spine ends and one small scuff at the lower spine, otherwise excellent. 64pp., illustrated; Part One of the Iowa Inventors and Inventions special.