File:Verge escapement Giovanni di Dondi.jpg
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Verge_escapement_Giovanni_di_Dondi.jpg (560 × 591 pixels, file size: 91 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:00, 1 June 2008 | ![]() | 560 × 591 (91 KB) | Chetvorno | {{Information |Description={{en|1=The earliest known drawing of a verge escapement, from ''Tractatus Astarii'', a manuscript describing his astronomical clock, by Giovanni di Dondi around 1364}} |Source=Retrieved from [John David North (2005) ''God's Cloc |
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