1541 - Robert Kirchhoff (DDR)

1541 - Robert Kirchhoff (DDR)
OwnerManuel Briones
ObservationsGustav Robert Kirchhoff (1824-1887) was a German physicist, whose main scientific contributions focused on the fields of electrical circuits, plate theory, optics, spectroscopy and the emission of black body radiation.
CountryGermany
Face value5
Year1974
StateNew
StatusInterchangeable
CategoryVIP
FormatVertical
ColorNegro y Gris
Other informationPerforated stamp
visualizations65