Pedro Gruenholz

Stamps Year 1968 . Pedro Gruenholz

Mexico Olympics 1968
Hungary
Slovak illustration
Czechoslovakia
Factory
Czechoslovakia
horsemen illustration
Czechoslovakia
50 Anniv.
Czechoslovakia
75 Anniv.
Poland
Puebla Ceramics
Panama
50th Anniversary Suva CNA INSAI
Switzerland
100 years Rhine navigation map
Switzerland
25th Anniversary National Planning
Switzerland