1000 Years Harzer Bergbau- Harzer Mines-Sciences and Techniques - Anniversary - ZnS - PbS.

1000 Jahre Harzer Bergbau- Minas de Harzer-Ciencias y Técnicas - Aniversario - ZnS - PbS.
OwnerHerman Cudris Castañeda
ObservationsLead Sulfate (PbS) - Zinc Sulfate (ZnS) - Stamps issued in 1968 and their expiration in 1970 - Codes: Michel DE 547 - Stamp Number:DE 979 - Yvert et tellier:DE 412 - Stanley Gibbons:DE 1452 - AFA:DE 1511
CountryGermany
Face value20pf.
Year1968
StateUsed
StatusExhibition - Non-transferable
CategoryScience
FormatVertical
Colormulticolor.
Other informationPerforated stamp Air mail
visualizations140