It is signed by William N Leonard World War 2 USA Navy ACE Pilot. He personally sent covers to RAF and other World War 2 participants to be signed and so are possibly unique.
1985 Letter from John B Maas US Marine Corps Pilot WW2 ACE Pilot
1985 Note from Morton D Magoffin World War 2 USA Air Force POW
Letter from Canada from unknown World war 2 Pilot who flew with Basil Embrey
1856 letter from John Barrow Principal St Edmund Hall Oxford
Geraldine McEwan - Hand Signed Photo + Hand Written Letter From Husband
1994 Letter from Don Snider DFC 408 Goose Sqn + booklet RAF WW2