The National Postal Museum gratefully acknowledges the generosity of Her Majesty Queen Elizabeth II and the following corporations and individuals:
- United States Postal Service
- DRAFT
- Loews L'Enfant Plaza Hotel
- Smart Papers
- Ann Conolly Hughey
- Kristen Ollies
- Michael Sefi, FCA, FRPSL, Keeper of the Royal Philatelic Collection
- Suresh Dhargalkar, LVO, RIBA, FRPSL, Deputy Keeper of the Royal Philatelic Collection
- Thomas J. Alexander
- Tim Hirsch
- Douglas Muir, FRPSL, Royal Mail
- Charles Goodwyn, LVO, LL.B, RDP, Hon FRPSL
Images reproduced by gracious permission of Her Majesty Queen Elizabeth II to whom copyright belongs.