I originally posted this on the "inter war maritime section but an reply there prompted posting this item here as well. I have acquired the Government Telegraph Code book with amendments to 1938. This is the code used (consisting of 5 letter groups) for the government comms in the Empire. To add these to the name plate of a model ship was an immediate obvious use. However also people modelling dioramas of aircraft, vehicles from specific units or specific establishments may also like to add this code to any name plate made. The book contains the code groups for all RAF squadrons extant in 1938 and British and Indian army units to battalion level. If anyone is interested in a code, post a note here (not sends a PM) and I will look at it from time to time and list the ones requested.