HSUs On Commemorative Stamps

The USSR issued a set of commemorative stamps on the 30th anniversary of their victory in the Great Patriotic War. This is one page of a set of corresponding first day covers. These covers were mounted on pages dedicated, two each, to individual winners of the order Hero of the Soviet Union. The purpose was patriotic displays in public places. I don't know how many pages were created but I have 40 of them.

From my collection.