Superheroes have always attracted a loyal following and those featured in the Generic Sheet are some of the best known. They began to appear 80 years ago - the anniversary of which has inspired this Royal Mail issue.
The Gold 500 pair of covers feature the British and American flags bordered by an intricate 22ct gold blocked design and enhanced with a London and New York skyline. Each cover bears five of the stamps with it's accompanying label and are cancelled with a special Captain Street, Bradford handstamp. Issued in a numbered limited edition of 500.