539 - World Communications Year

539 - Año Mundial de las Comunicaciones
OwnerManuel Briones
ObservationsHeinrich Rudolf Hertz (1857-1894) was a German physicist who discovered the photoelectric effect, the propagation of electromagnetic waves and the ways to produce and detect them.
CountryGuinea Bissau
Face value3.50
Year1983
StateUsed
StatusInterchangeable
CategoryEvents
FormatLandscape
ColorMulticolor
Other informationPerforated stamp
visualizations87