During the time of Leonardo da Vinci, many artist-craftsmen chose not to sign their creations, a practice that was common in that era. This lack of signatures often stemmed from a collective culture that prioritized the artwork itself over individual recognition. As a result, much of their work is appreciated for its intrinsic value rather than attributed to a specific artist.

Walter Isaacson's book on Leonardo da Vinci highlights this phenomenon, illustrating how the artist's legacy and contributions became significant despite the absence of personal signatures. This approach reflects a deep respect for the artistic community, where collaboration and shared ideas were more important than individual fame.