WW2 USAF Cdr Willis E Hardy, Gen Frank L Gailer, Gen Curtis Le May signed cover

WW2 USAF Cdr Willis E Hardy, Brig Gen Frank L Gailer, General Curtis Le May and Ron Dick signed RAF B32 50th ann of the Start of the Design of the Boeing B-17 Fortress WW2 FDC. Always interested in buying bulk collections as well.