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| SEQUENCE NUMBER FOR THIS VOLUME | CLASSIFICATION OF OTHER SUBJECTS |
|---|---|
| Leaf No. 35 . . . Front. original: "Recto" | |
| (The back is blank.) original: "Le verso est blanc." |
This classification card was produced for the late 19th-century facsimile editions by Édouard Rouveyre, who sought to organize Leonardo's disorganized notes into thematic volumes for scholars and collectors.