BFPO Commemorates The Great War
British Forces Philatelic Service
Access to the website is free.
The Forces Philatelic Bureau is producing a special commemorative cover to mark the Declaration of War 4ᵗʰ August 1914. The cover with a single stamp uses an image of a contemporary newspaper headline "Great Britain Declares War", which has been used to highlight this historic event. Included will be an information insert and along with the covers it will be presented in a cellophane sleeve to create a high quality souvenir to mark the event.
You can buy these covers from the BFPS online shop.