Stamps Category Minerals

Minerals from Spain "Galena"
gines Moral
Minerals from Spain "Pyrite"
gines Moral
Minerals from Spain "Pyrite"
gines Moral
Minerals from Spain "Sfarelite"
gines Moral
Minerals from Spain "Sfarelite"
gines Moral
Minerals from Spain "Cinnabar
gines Moral
Minerals from Spain "Cinnabar
gines Moral
Wieliczka Salt Mines
Pedro Gruenholz
Minerals from Mexico
Pedro Gruenholz
workers working
Pedro Gruenholz