Owner's Pictorial Guide for the Care and Understanding of the Jennings Bell Slot Machine
Each of the five books in the Owner's Pictorial Guide series is the most comprehensive work ever published about the particular slot machine covered. They are original works, not reprints of old service technician's booklets; they begin with the basics and teach theory, thereby enabling the reader to overcome any problem the machine may have. Whether you have one or several of the particular machines covered, you will want these extraordinary books in your library.