An impressive and well-organised collection of at least 700 covers displayed by series in 9 volumes filling a large clear container. Seldom seen this extensive, there are individual volumes for Bomber Command, Co-ordinated Flight Series, Escaping Society with worldwide covers, then Test Pilots, Aviation Firsts, Historic Aviators, Air Displays, and colourful special flown FDCs. A huge number of signatures, the vast majority being signed, and very little if any duplication: where the covers are frequently stacked these are the varieties. Accompanied by two volumes of the RAF Museum cover handbook/catalogue with useful pencil annotations by the collector, as well as a folder of the collector's paperwork. A fascinating display assembled over decades from the museum and other services, as well as auction. Many of these items would retail online at £5++ each. A great opportunity.