Keywords: Adriaen van Ostade - Alchemist - WGA16738.jpg Oil oak size cm 34 45 2 Institution National Gallery London 26 object history provenanceEvent 1871 purchase National Gallery London credit line accession number NG846 http //www nationalgallery org uk/paintings/adriaen-van-ostade-an-alchemist PD-old-100 painting genre Dutch 1651-1700 Paintings by Adriaen van Ostade Dutch Golden Age paintings in the National Gallery London Ostade Adriaen van 1661 paintings WGA form painting WGA type genre WGA School Dutch WGA time period 1651-1700 17th-century oil on panel paintings in the United Kingdom Alchemists in art 1660s paintings in the United Kingdom Fireplaces in art Pottery in painting |