Pedro Gruenholz

Stamps Year 1974 . Pedro Gruenholz

The cosmos of the future
Cuba
The cosmos of the future
Cuba
The cosmos of the future
Cuba
Painting by Erich Heckel
Germany
UPU Foundation Bern
Switzerland
Pro Juventute 1974
Switzerland
Pro Juventute 1974
Switzerland
Pro Juventute 1974
Switzerland
Pro Juventute 1974
Switzerland
XVII UPU Congress
Switzerland