The Libyan Sibyl drawing was acquired by on August 8, 1924. - largely through the negotiations of the esteemed artist John Singer Sargent

The drawing is dated to around the winter of 1511. This red chalk study coincides with Michelangelo's return to Rome for the second phase of his iconic Sistine Ceiling project.

Reflecting the Italian classical drawing (disegno), multiple strokes were meticulously employed to achieve correct proportions. - called "pentimenti" -those ghostly, visible alterations indicating previous versions of figures and poses - exemplified in the rendering of the

This drawing was actually part of a double-sided sheet. - the reverse side features an additional study in soft black chalk

The main preparatory drawing was executed with red chalk which was a common medium in Michelangelo's time...

Red chalk is an iron-oxide pigment that contains clay and other mineral compounds. It was highly regarded as a drawing material from the fifteenth through the eighteenth centuries.

Red chalk has the ability to draw attention to anatomical nuances. - in this case the shoulders and supraspinatus muscles - revealing Michelangelo's unparalleled skill

The study emphasizes the shoulders' spatial depth as seen before. - with meticulous attention to the positioning of the toes on the left foot

This preparatory sketch, once completed, would then have been made into a full-size drawing. Then pounced with black chalk and transferred to the Sistine Chapel ceiling to await painting.

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