I've just donated 2 metres line of books relating to Military Aviation (except ATC) to the Air Ambulance, to try and make more book shelving space for more Aviation Books, Technical Manuals and Air Traffic Control.
A box of Air Ministry Air Publications has gone to an Aviation Museum Archive, because they didn't hold them.
The RAF Museum Archive had one of mine, because it was the only surviving 1935 Edition. The World's Libraries don't have one listed.
I am interested in the development of Air Traffic Control and the Distress Organisation.
I find it difficult to part with anything.
Mark