Pedro Gruenholz

100 years Dynamoelectric principle

100 años Principio dinamoelectrico
OwnerPedro Gruenholz
CountryGermany
Face value30 pfennig
Measures3,2x2,5 cms
StateUsed
StatusExhibition - Non-transferable
CategoryCommemorations
FormatVertical
Other informationPerforated stamp
visualizations525