Author: Parker O. Ackley
Publisher: Self-Published, c.1959
Description: Paperback, sixth printing, copyright date of 1959. Original, not a modern reissue. I imagine this printing was from the early to mid 1960s or so. Slight undulation along the lower edge of the book from possible water damage. It isn't noticeable to the naked eye but you can feel it when you run your finger over the pages. Text is in great shape otherwise. Front cover has a small scuff and there are light scratches on back. The plastic comb binding is intact with no cracks or missing links. 156 pages with b/w charts and diagrams throughout. Free USPS Media Mail shipping.