R. VOORTMAN (19. Jhd), Gewundene Flusslandschaft, Radierung Moderne. Robert Voortman (19. Jahrhundert), Gewundene Flusslandschaft. Skizzenhafte Flusslandschaft mit dunklem Gewächs entlang des Ufers, 20.
R. Voortman (19th Century, 20th Century), Channel between Rows of Houses, Wheel. Realism
R. Voortman (19th Century, 20th Century), Three Sailboats on Still Water, Etching
R. Voortman (19th century, 20th century), narrow alley between houses, wheel. Modern
R. Voortman (19th century, 20th century), boats in front of the waterfront, etching realism
R. Voortman (19th Century, 20th Century), Male Profile with Beard, 1900, Etching Realism
R. Voortman (19th Century, 20th Century), Landscape with Watercourse, Etching Realism
