1967. First Edition. 118 pages. No dust jacket. Signed by the author. Brown cloth covered boards with gilt. Black and white photographs and diagrams. Signed with dedication from the author on front free endpaper. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. Boards have mild shelf wear with light rubbing and corner bumping. Some mild marking and tanning. Gilt lettering remains bright and clear.