Pedro Gruenholz

Stamps Year 1974 . Pedro Gruenholz

stunts
China
Mao's teachings on agricultural production
China
Chinese export fair.
China
Mao's teachings on agricultural production
China
Mao's teachings on agricultural production
China
Mao's teachings on agricultural production
China
Mao's teachings on agricultural production
China
Centennial of the Postal Union
China
Centennial of the Postal Union
China
Postal Union Centennial
China