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Drawing from U. S. Patent

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Drawing from U. S. Patent.jpg Breguet’S TourbillonThumbnailsPart of the Drawings from U. S. Patent 186838Breguet’S TourbillonThumbnailsPart of the Drawings from U. S. Patent 186838Breguet’S TourbillonThumbnailsPart of the Drawings from U. S. Patent 186838Breguet’S TourbillonThumbnailsPart of the Drawings from U. S. Patent 186838Breguet’S TourbillonThumbnailsPart of the Drawings from U. S. Patent 186838Breguet’S TourbillonThumbnailsPart of the Drawings from U. S. Patent 186838

Drawing from U. S. Patent 165831, showing Hopkins’ first design improvement, an arbor for the barrel and train to turn on and the balance displaced from center.