The United Nations Postal Administration (UNPA) has issued souvenir cards nearly every year since 1972, though production numbers and frequency have dropped off from the early years. While most UN cards are philatelic, since 2017 the UNPA has created cards that relate thematically to stamps being issued, but without depictions of the actual stamps. Cards are typically offered mint and first day cancelled. At first these were prepared in advance only for New York and Geneva offices, with FDCs from Vienna added in 1980. Special thanks to Alton Coalter and Mark Gereb, who researched and organized the information in the gallery and scanned most cards from their own collections.