493 - XXV Anniversary of the Swiss Territorial Planning Society

493 - XXV Aniversario de la Sociedad Suiza de Planificación Territorial
OwnerManuel Briones
CountrySwitzerland
Face value30
Year1968
StateUsed
StatusInterchangeable
CategoryCommemorations
FormatLandscape
ColorMulticolor
Other informationPerforated stamp
visualizations69