Engraved by W.Holl from an Engraving by Tassaert published in 1768 after a painting by King.
WILLIAM MACKENZIE, GLASGOW EDINBURGH, LONDON & NEW YORK.
John Harrison (1693-1776), English carpenter and clockmaker who revolutionised navigation and long distance sea travel with his marine chronometer which enabled the accurate calculation of longitude at sea.
Stipple engraving by W. Holl after P.L.Tassaert's engraving of Thomas King's 1767 portrait.
Published in The Imperial Dictionary of Universal Biography by William Mackenzie. London Glasgow & Edinburgh, 1880.