Starting with a brief history of the railway at Plymouth, Larry moves on the describe the staff, the equipment and the regulations.

The major part of the book is devoted to describing each of the signal boxes and setting out the local instructions that applied and a diagram – usually several diagrams. The signal boxes of both the railway companies are included and they are all listed here.

There are appendices dealing with the opening hours of signal boxes, special bell codes used and the electric token receiving and delivery apparatus.

The value of this book goes beyond Plymouth as it will aid an understanding of how signal boxes in and around a major conurbation work together to keep traffic moving and serve the customers.

This is an A4 card covered book.