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A Plain chart of the Caspian Sea, According to the Observations of Capt John Elton, Author of Elton's Quadrant & Thomas Woodroofe Master of the British ships Empress of Russia who Navigated this Sea three years, Presented to Mr Jonas Hanway of St Petersburg in 1745 by his most Obedient Servant Thomas Woodroofe (MCA/01/02/03/07) -