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cole de Lonard de Vinci Codex Vallardi r. tude d'un instrument de musique cordes Plume et encre brune sanguine cm Museum Louvre Codex Vallardi louvre fr Dpartement des Arts Graphiques du Louvre INV recto century cole de Lonard de Vinci Scuola di Leonardo da Vinci Other versions File cole de Lonard de Vinci Codex Vallardi