Recto: drawings of machinery and geometric diagrams; studies of horses; studies of nude men, standing and in motion; heads in profile; a larger drawing of an angel. Verso: studies of prancing horses; a classical profile; a ratchet and two diagrams. The lower corners of the sheet are cut. The first drawing on this sheet must have been the figure of the Angel of the Annunciation. This was drawn by a right-handed artist and therefore cannot be by Leonardo, who was left-handed. Leonardo made corrections in pen to the pointing arm, and then added numerous little sketches, most of which are studies for the mural of the Battle of Anghiari, begun in Florence in 1503. RL 12328r