Stamps Category Minerals

EXCHANGE
javier avila
EXCHANGE
javier avila
gold production
Nelida Fernandez Besada
Mining
Nelida Fernandez Besada
2999 - 250th Anniversary of the Bergakademie Technical University, Freibrug, Mineral
joaquín iturrioz
Agate
Luis Ruiz
Clavero Cordoba Mine
Luis Ruiz
Edf 2300 - Christmas
Manuel Briones
Mining
Nelida Fernandez Besada
Manganese
Nelida Fernandez Besada