XJF265577 \'White Slaves or Black?\', caricature from \'Fun\' magazine June 26th 1875 (litho) by English School, (19th century); Private Collection; (add.info.: Cartoon criticising Britain\'s readiness to interfere with other countries while ignoring the condition of workers in Britain; in 1875 the Sultan of Zanzibar, Seyyid Barghash (1837-88), signed a treaty with Britain abolishing slavery;); English, out of copyright.