Michelangelo Buonarroti – Studies for the Libyan Sibyl (recto); Studies for the Libyan Sibyl and a small Sketch for a Seated Figure (verso) – The Metropolitan Museum of Art https://www.metmuseum.org/art/collection/search/337497
Signature: [On recto, annotated in pen and light brown ink at lower left:] di Michel Angelo bona RotiInscription: On verso, annotated in pen and brown ink at upper right: 58 Annotated by early 16th century hand at lower center, following the same numbering system of the Michelangelo drawings in the Buonarroti family: nº
Arthur Ewart Popham, Johannes Wilde The Italian Drawings of the XV and XVI centuries.
