Advent calendar with great prizes! Scan the stamps using the Post-App from 1 December to solve daily puzzles in the Advent calendar and win great prizes. Get into the Christmas spirit with these stamps: four beautiful designs will get you in the mood for the festive season and decorate your Christmas mail. Whether it’s with a letter or a postcard, you can bring plenty of joy to your family and friends. The new designs pick up on the special nature of the winter season by placing a stylized window in the form of a typical Christmas symbol at the center of each stamp. If you take the time to peer out of the little windows, you’ll discover idyllic winter landscapes – a design within the design. As such, the images encourage you to enjoy a moment of profound contemplation, whether it’s reflecting on the year just gone or thinking of the year ahead.