Now showing: Netherlands - Official stamps (1913 - 2016) - 4 stamps.
1940
Queen Wilhelmina - International Court of Justice - Postage Stamps of 1940 Overprinted "COUR PER-MANENTE - DE JUSTICE - INTER-NATIONALE"
April WM: 1 Design: Jan van Krimpen y Willem van Konijnenburg. Engraving: Joh. Enschedé. Perforation: 13½ x 12¾