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Pieter Cornelis de Moor Simon Moulijn Derk Wiggers. Pieter Cornelis de Moor zittend links Simon Moulijn met palet en Derk Wiggers staand nl Rijksbureau voor Kunsthistorische Documentatie ca Author Pieter Cornelis de Moor Simon Moulijn Derk Wiggers AnonymousEU
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