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Pisanello Codex Vallardi r. Deux ours debout de profil vers la droite Pierre noire estompe trac prparatoire au stylet traces de plume et encre brune cm Museum Louvre Codex Vallardi louvre fr Dpartement des Arts Graphiques du Louvre century Creator Pisanello Other versions File Pisanello Codex Vallardi Verso PDold Codex