EuroGraphics Washington Crossing the Delaware by Emanuel Leutze 1000-Piece Puzzle Box size: 10" x 14" x 2.37". Finished Puzzle Size: 19.25" x 26.5". Washington Crossing the Delaware is the best known painting from Emanuel Leutze, a German born artist. After moving to the US as a child, the main theme of his works would be described as works of patriotic emotionalism. Strong high-quality puzzle pieces. Made from recycled board and printed with vegetable based ink. This superior quality puzzle will delight and educate all at the same time.