These three different 1st Class poppy stamp designs were issued as part of the following stamp issues:
2006 Lest We Forget - Somme
2007 Lest We Forget - Passchendaele
2008 Lest We Forget - Armistice
These three poppy stamps were issued se-tenant in sheet format on the same date as the Armistice issue. It is very difficult to now find these stamps in sheet format.