Large copperplate engraving showing the two ships in Lord Mulgrave's expedition in search of a passage to India via the Arctic Route in 1773. Perhaps the most historically significant feature of the voyage was its inclusion of Olaudah Equiano (c.1745-1797) as a member of the crew. Equiano, a former slave who went on to become a radical reformer and best-selling author, became the first black person to explore the Arctic when he sailed, on the same ship as Horatio Nelson, on Lord Mulgrave's expedition. The map shows the crew hauling out a smaller boats across the ice, with the ships in the background.
Alexander Hogg was a publisher active in London from 1778 to 1824. He worked under the sign of the Kings Arms on Paternoster Row. He is especially known for publishing architectural and historical prints, as well as maps.