Postzegel Nederland 1991, Kinderpostzegel, Verstoppertje CreatorHadders, GerardDate of creation6 november 1991Collection150 years of designs for the Dutch Postal Services in pictures
Postzegel Nederland 1991, Kinderpostzegel, Spelen met poppen en robots CreatorHadders, GerardDate of creation6 november 1991Collection150 years of designs for the Dutch Postal Services in pictures
Postzegel Nederland 1991, Kinderpostzegel, Fietsen om het hardst CreatorHadders, GerardDate of creation6 november 1991Collection150 years of designs for the Dutch Postal Services in pictures
Postzegel Nederland 1991, Blok Kinderpostzegels CreatorHadders, GerardDate of creation6 november 1991Collection150 years of designs for the Dutch Postal Services in pictures