Gross or Groff, Heinrich (16th century). Medium: pen and ink and watercolour on paper. Date: 16th Century. Mine d'argent de La Croix aux Mines, la maniere d'amener le bois; amener; recueil de dessins; today French region; Provenance: Bibliotheque de l'Ecole des Beaux-Arts, Paris, France / Giraudon. Photographic rights held by The Bridgeman Art Library.