gallery Valerie WiffenWiffen, Valerie J.; Sir Sigmund Sternberg; National Portrait Gallery, London; http://www.artuk.org/artworks/sir-sigmund-sternberg-158856painting by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffenpainting by Valerie Wiffenpainting by Valerie Wiffenpainting by Valerie Wiffenpainting by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffendrawing by Valerie Wiffenpainting by Valerie Wiffenpainting by Valerie Wiffenpainting by Valerie Wiffen