1996 - Centennial of the National Geological Institute

1996 - Centenario del Instituto Geológico Nacional
OwnerManuel Briones
ObservationsPlacochelys placodonta.
CountryHungary
Face value4
Year1969
StateUsed
StatusInterchangeable
CategoryScience
FormatVertical
ColorMulticolor
Other informationPerforated stamp
visualizations61