Customs House at Boulogne; Thomas Rowlandson; 1756-1827; British; 1790s; Watercolor with pen and gray and black ink over graphite; verso: graphite on medium; moderately textured; blued white; laid paper; Sheet: 8 x 11 9/16 inches (20.3 x 29.4 cm); customs houses; dog (animal); genre subject; grand tours; hats; horses (animals); luggage; men; square (open space); stagecoach; travellers; women; Boulogne; Europe; France