John Harrison and the Longitude page 3

Products

• 
  Harrison's marine timekeeper H4 John Harrison
• 
  Map of Virginia John Senex
• 
  Astrolabe: dismounted reverse unknown
• 
  Astrolabe: detail of top right quarter, reverse unknown
• 
  Astrolabe: dismounted reverse Muhammad Muqim ibn Mulla 'Isa
• 
  Astrolabe: mounted obverse Muhammad Muqim ibn Mulla 'Isa
• 
  Medal commemorating the bicentenary of John Harrison's death, 1976; reverse William Andrews
• 
  Counter commemorating the reform of longitude; obverse unknown
• 
  Impression I. & R. Longman
• 
  Harrison's marine timekeeper H4 John Harrison
• 
  Harrison's marine timekeeper H4 John Harrison
• 
  Harrison's marine timekeeper H4 John Harrison
• 
  Map of the southwest of Africa, 18th century Departement de la Marine
• 
  Astrolabe: mounted obverse al-Sarraj
• 
  Astrolabe: dismounted reverse al-Sarraj
• 
  Medal commemorating Keppler symposium, 1971; obverse unknown
• 
  Escapement model by Thomas Earnshaw Thomas Earnshaw
• 
  Medal commemorating Keppler symposium, 1971; reverse unknown
• 
  Imprint in Pacific Ocean Willem Jansz Blaeu
• 
  Model of the Walton Container Terminal IN COPYRIGHT? Minima Industrial Modelmaking
• 
  Astronomical instruments including a drawing of John Harrison's marine timekeeper H2 John Charnock
• 
  Astrolabe: mounted obverse unknown
• 
  Astrolabe: dismounted obverse Muhammad Muqim ibn Mulla 'Isa
• 
  Longitude Lunatics' from 'The Rake's Progress William Hogarth