1958. No Edition Remarks. 107 pages. Paperback book with pictorial cover. Full title: Ediswan Mazda Valves. Transistors And Cathode Ray Tubes Data Booklet 1957-58. Slight cracking to binding, rear cover slightly loose. Pages have light tanning and foxing throughout. Boards have moderate shelf-wear with bumping to corners and rubbing to surfaces. Slight curling to corners. Staining to rear cover. Wear marks overall.