3744551 Monument Erected to the Memory of the Sufferers in the Black Hole, Calcutta (engraving) by English School, (19th century); Private Collection; (add.info.: The Black Hole of Calcutta was a small prison or dungeon in Fort William where troops of Siraj ud-Daulah, the Nawab of Bengal, held British prisoners of war for one fatal night on 20 June 1756.).