Cover fr. with 8dr 1938 Royal wedding canc. "ΑΝΑΚΤΟΡΑ*2.II.38" to Germany. Cachet "ΥΠΗΡΕΣΙΑ ΤΗΣ Α.Β.Υ. ΤΟΥ ΔΙΑΔΟΧΟΥ". Card included with the signatures of Prince Paul and Princess Fredericka-Louise. (Hellas 556).