Nemesio Ramirez Lemos

150th birthday of Hermann von Helmholtz (scientist).

150 aniversario de Hermann von Helmholtz (científico).
OwnerNemesio Ramirez Lemos
CountryGermany
Colection
Face value25 pf.
Measures28x33mm.
Year1971
StateUsed
StatusExhibition - Non-transferable
CategoryCommemorations
FormatVertical
Colorvarios.
Other informationPerforated stamp
visualizations191