design-is-fine: Francesco Furini, study of hands, early 17th century. Blood and charcoal on white paper. Prints &amp; Drawings / Uffizi Gallery, Florence. Source

design-is-fine: Francesco Furini, study of hands, early 17th century. Blood and charcoal on white paper. Prints & Drawings / Uffizi Gallery, Florence. Source

design-is-fine: Francesco Furini, study of hands, early 17th century. Blood and