Kinderpostzegels en Kinderpostzegel-actie

A series of photos and gouaches for Kinderpostzegels Nederland. Produced by Fibo Beeldonderwijs for magic lantern. Containing 23 silver gelatin photos by a.o. photographer W.C. van Dijk (1905-1964) + 11 p. accompanying text. Added: Wie die schönsten Marken entstehen. ADA press-service, Amsterdam, 1940. Incl. 2 p. text and 9 photos.