The 1940 Year Book of the Institution is a surprisingly lavish publication considering that the Second World War had just started.

In this section extracts of the book  have been reproduced including:

There were five classes of membership in 1940 (Members, Associate Members, Students, Fellows and Associate Fellows).  

Annual subscription for a member was 7 Shillings and 6 Pence.  The split between Members and Associate Members was between Supervisors over 25 years old (Members) and Enginenmen, Firemen, Fitters or craftsman 21 years and over (Associate Members).