Go back to article: Chronometers, charts, charisma: on histories of longitude

Figure 1

Part of an oil painting portrait of John Harrison showing a close up view of his hand holding his marine chronometer

© Science Museum/Science & Society Picture Library

Detail of the portrait of John Harrison painted by Thomas King in 1766 showing the timekeeper made to Harrison’s design by John Jeffries in 1753, a model for Harrison’s successful sea watch H4.

DOI: http://dx.doi.org/10.15180/140203/002