Thomas de Keyser (c.1596 – 1667), “Portrait of a Silversmith, probably Christian van Vianen” (1630), 64x54cm, oil on oak panel, Auctioned at Sotheby’s 2015, current whereabouts unknown

Thomas de Keyser (c.1596 – 1667), “Portrait of a Silversmith, probably Christian van Vianen” (1630), 64x54cm, Oil on Oak Panel, Auctioned at Sotheby’s 2015, current whereabouts unknown.