License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Giuseppe Salviati (Giuseppe Porta, called Il Salviati). Lucretia instructing her daughters in needlework from Giovanni Ostaus's, La vera perfettione del disegno di varie sorte di recami (Venice, 1557), 1557. The Metropolitan Museum of Art.