Letter sent from Aarhus 25 November 1949 to Roskilde, prepaid with 20 øre for an ordinary domestic rate letter. The postal service assumed that the letter contained coins, then endorsed by “Formodes at indeholde Penge” and stamped “Kassebrev Aarhus Postkontor”. As such, the letter were opened and proved to contain 12 1/2 øre, fined and charged with registration fee. In reply to a copper wedding invitation - and a set of coins glued as symbolism to 12 1/2 years, in copper coins !