As one extra, and thinking of Rics note about being given things. I was in contact with the widow of Air Commodore 'Peter' Paynter, who was Chief Intelligence Officer at Bomber Command during the war. She offered me his 1944 dated tunic, with 1918 wings, his peaked cap, and greatcoat. I offered to pay for them, or donate to the RAF, and she insisted I pay no more than £5.00 to the latter!
Paynter resigned his commission at the end of the war in protest at Bomber Harris being denied a place at the Victory celebrations and was made the first post war director of Mi6.