Bust of a man in profile with measurements and notes 1490

This drawing, created by Leonardo da Vinci in 1490, showcases his meticulous approach to anatomical studies. The detailed drawing of a man's bust in profile, framed by a grid, reveals da Vinci's fascination with the human form and his dedication to understanding its proportions. His annotations surrounding the drawing indicate his meticulous recording of measurements, a testament to his scientific mind and his desire to quantify beauty. The study of the human figure, particularly the head, was a recurring theme in da Vinci's work, paving the way for his later masterpieces.