Drukproef, postzegels Nederland 1972 Nederlandse vlag CreatorJoh. Enschedé en ZonenDate of creation21 maart 1972Collection150 years of designs for the Dutch Postal Services in pictures
Presentatiemodel, postzegels Nederland 1972 Nederlandse vlag CreatorToorn Vrijthoff, Jelle van derDate of creation21 maart 1972Collection150 years of designs for the Dutch Postal Services in pictures