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Horology - Clocks and Watches
Horology - Clocks and Watches

MST436


harrison
harrison guardian1 - Clockmaker John Harrison vindicated 250 years after Ďabsurdí claims harrison independant - John Harrison's 'longitude' clock sets new record - 300 years on
harrison guardian2 - A true sea shanty: the story behind the Longitude prize harrison longitude - Longitude harrison nova