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Leonardo da Vinci (Vinci 1452-Amboise 1519)

Recto: A bald man in profile, with mathematical calculations and notes. Verso: A bearded man in profile, confronted by a grotesque profile c.1492-5

Recto: Red chalk and pen and ink. Verso: Pen and ink | 17.2 x 12.4 cm (sheet of paper) | RCIN 912555

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