The Jolly Flatboatmen. Dated: 1846. Dimensions: overall: 96.8 x 123.2 cm (38 1/8 x 48 1/2 in.) framed: 116.8 x 143.8 x 10.5 cm (46 x 56 5/8 x 4 1/8 in.). Medium: oil on canvas. Museum: National Gallery of Art, Washington DC. Author: George Caleb Bing