Audel's Electic Library, Volumes, 5, 8 discount and 10

These are 3 volumes of Audel's Electric Library with red leather covers and gold paper edges. Volume 5 is the oldest with a copyright of 1929; volume 8 is copyrighted 1930 with revisions made in 1937. Volume 10 is from 1931/1941. Volume 5 covers AC motors through circuit breakers; Volume 8 everything from elevators to gas engines to auto ignitions and starters and volume 10 will inform the reader about welding, refrigeration and bells discount and alarms. Note that Volume 10 has an index of the the full library.

Each book is in excellent condition. They were purchased in various antique stores over many years.