Berthold Schwarz; Print made by Jacob Gole; 1660-1737; Dutch; after unknown artist; seventeenth century-eighteenth century; undated; Mezzotint on medium; slightly textured; cream laid paper; Sheet: 10 1/8 x 7 1/2 inches (25.7 x 19 cm); Plate: 9 7/8 x 7 3/8 inches (25.1 x 18.7 cm); and Image: 8 13/16 x 7 3/8 inches (22.4 x 18.7 cm); alchemist; artillery; cap; cape; gunpowder; inventor; kiln; man; monk; oval; portrait; robe; table; working; workshop (work space)