Each year, since 1966, special seasonal stamps have been issued for Christmas. The notable 50th anniversary has been celebrated in a unique Generic Stamp Sheet featuring ten First Class and ten Second Class stamps from the 2016 issue set against a background containing images of selected Christmas stamps from the past five decades. It also includes labels bearing popular season's greetings for use when sending Christmas cards.
Here, the pair of covers bear one stamp and label each together with an appropriate image and handstamp.