Pedro Gruenholz

Stamps Category Events Pedro Gruenholz

World population conference
Romania
Disarmament conference in Geneva
Switzerland
Disarmament conference in Geneva
Switzerland
23rd UPU congress in Bucharest
Romania
23rd UPU Congress
Romania
UPU Philately Congress
Romania
UPU Philately Congress
Romania
23rd UPU Congress
Romania
23rd UPU congress in Bucharest
Romania
international year of the child
Australia