Last few remaining and price moving up.
This stamp sheet has been compiled with the assistance of the National Pigeon Association. It features original images from the first World War to show how important pigeons were as a means of communication.
The design by Natalie Orchard has a mobile pigeon loft releasing birds as its background. London buses were converted for this purpose.
Ten images are set against Royal Mail's 'Poppies' stamps each with its own descriptive text.
The badge is that of the National Pigeon Service.