I'm currently researching the history of ATC in the Isle of Man for the future publication of a book about our 1940s Royal Navy Control Tower, due to be replaced next year.
If anyone has any information, or even better, photographs they would be willing to share, I'm really looking for pre 1990s information and pics.
If you'd like to see how ATC was done here in 1939 have a look at:
Ronaldsway ATC 1930s