1053074 The Prohibition of Coolie Traffic by the Portuguese Government, American Clippers used to convey Coolies lying Idle in Macao Roads (engraving) by English School, (19th century); Private Collection; (add.info.: The Prohibition of Coolie Traffic by the Portuguese Government, American Clippers used to convey Coolies lying Idle in Macao Roads. Illustration for The Graphic, 22 August 1874.); Look and Learn / Illustrated Papers Collection; English, out of copyright.