File:Leonardo machine for grinding convex lenses.JPG
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Size of this preview: 418 × 599 pixels. Other resolutions: 167 × 240 pixels | 463 × 664 pixels.
Original file (463 × 664 pixels, file size: 132 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:43, 7 February 2007 | 463 × 664 (132 KB) | commons>TTaylor | {{Information |Description= Leonardo da Vinci, design for a machine for grinding convex lenses |Source= Bortolon, ''The Life and Times of Leonardo'', Paul Hamlyn |Date= late 15-early 16th century |Author= Leonardo da Vinci |Permission= PDArt |other_versio |
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