1921. DANMARK. BREVKORT 3 on 2 ØRE wavyline + 5 ØRE Christian X with print number 42-c. Very rare card locally in Köbenhavn cancelled KØBENHAVN 29.4.21. Sender print reverse from the Danish Scout organisation: DET DANSKE SPEJDERKORPS HOVEDKVARTERET re invitation to a parade for her royal highness Prinsess Margrethe. Very rare piece of Danish Scout history.