DETAIL : 
Martin Johnson HEADE  
United States of America 1819 � 1904-09-04  
Sunlight and shadow: the Newbury Marshes c.1871-75, oil on canvas National Gallery of Art, Washington, DC. John Wilmerding Collection (Promised Gift). Image courtesy of the Board of Trustees, National Gallery of Art, Washington DC
Gustave COURBET | Low tide, the beach at Trouville  [La Plage de Trouville à marée basse]

Gustave COURBET Low tide, the beach at Trouville [La Plage de Trouville à marée basse]
[also known as Seascape: Low tide, the beach at Trouville]