2025Stamp Day - Sheetlets

Stamp Day is an annual international event. In most countries, it is celebrated on the first Sunday after October 9th, the founding date of the Universal Postal Union (UPU). The UPU, also known as the Universal Postal Union, establishes the rules for international postal traffic between its member states. PostNL will commemorate Stamp Day on October 13, 2025, by issuing the 2025 Stamp Day stamp sheet. The stamps will have a denomination of "1" for mail weighing up to 20 grams destined for the Netherlands. The design of the stamp sheet was created by graphic designer Sandra Smulders from Gouda, inspired by the Toorop stamps of 1923.