Prezentat acum: Olanda - Timbre oficiale (1913 - 2016) - 4 timbre.
1940
Queen Wilhelmina - International Court of Justice - Postage Stamps of 1940 Overprinted "COUR PER-MANENTE - DE JUSTICE - INTER-NATIONALE"
Aprilie WM: 1 Design: Jan van Krimpen y Willem van Konijnenburg. Gravură: Joh. Enschedé. Perforare: 13½ x 12¾