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Keywords from Image Description:
Postzegel NL nr. Zomerzegels Matthijs Maris schilder Anton Mauve schilder van Swieten geneeskundige Nicolaas Beets theoloog en letterkundige Pieter Stuyvesant gouveneur Curacao later New York NVPH nr Ontwerpers Reitsma Valena en ct Hartz ct Kuno Brinks ct en Hubert Levigne ct scanned from own collection Wouter Hagens