The small sketch is a study of a foot for one of the figures on the ceiling of the Sistine Chapel in Vatican City. The buyer's name was not disclosed.

Experts at Christie's say it is a foot sketch of the Libyan Sibyl which was later painted on the Sistine Chapel ceiling.

Nuovo primato per un disegno del genio rinascimentale. Il prezzo finale dell'asta, che si è tenuta da Christie’s a New York, è quattordici volte superiore alla…