A series of detailed lectures on television engineering. - Title: Television Engineering Course Volume 4 - Title: Television Engineering Course Volume 6 - Title: Television Engineering Course Volume 5 These are products from the Showa era. They have been stored in a warehouse and show signs of dirt, discoloration, peeling in places, and rust on staples. These are products from the Showa era. This book was published on January 15, 1969. Would these be suitable for collectors or for display in a shop? Please purchase only if you understand and accept the condition. If you have any questions, please ask before purchasing. Thank you.