John Harrison and the Longitude page 3

Products

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  Winding wheels of John Harrison's marine timekeeper H1 John Harrison
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  The Maid of Padua Joseph John Jenkins
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  Exterior of Queen's House, Greenwich National Maritime Museum Photo Studio
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  Night-time view of Queen's House, Greenwich National Maritime Museum Photo Studio
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  Celestial table globe unknown
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  Harrison's marine timekeeper H4 John Harrison
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  Map of Virginia John Senex
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  Astrolabe: dismounted reverse unknown
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  Astrolabe: detail of top right quarter, reverse unknown
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  Astrolabe: dismounted reverse Muhammad Muqim ibn Mulla 'Isa
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  Astrolabe: mounted obverse Muhammad Muqim ibn Mulla 'Isa
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  Medal commemorating the bicentenary of John Harrison's death, 1976; reverse William Andrews
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  Counter commemorating the reform of longitude; obverse unknown
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  Impression I. & R. Longman
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  Harrison's marine timekeeper H4 John Harrison
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  Harrison's marine timekeeper H4 John Harrison
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  Harrison's marine timekeeper H4 John Harrison
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  Map of the southwest of Africa, 18th century Departement de la Marine
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  Astrolabe: mounted obverse al-Sarraj
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  Astrolabe: dismounted reverse al-Sarraj
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  Medal commemorating Keppler symposium, 1971; obverse unknown
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  Escapement model by Thomas Earnshaw Thomas Earnshaw
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  Medal commemorating Keppler symposium, 1971; reverse unknown
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  Imprint in Pacific Ocean Willem Jansz Blaeu