It's By Corfield it must be good.

The Periflex Story by John Lewis.

The book was  an essential source of information for the Corfield Cameras section in the museum. It contains a lot of useful information about Corfield's and their products. The cover was designed by John Roberts who produced all of Corfield's adverts and sales literature. If you would like a copy of the book, please email John. His email address is:  jelewis@compuserve.com