Francisco Goya, Isabel de Borbon, 1778, etching and drypoint on heavy laid paper [first edition impression printed in the Calcografia in 1778-79], National Gallery of Art, Washington. https://dartabase.art/cite/nga/7446 Francisco Goya, Isabel de Borbon, 1778, printed later, etching and drypoint on wove paper, National Gallery of Art, Washington. https://dartabase.art/cite/nga/7445 Francisco Goya, Baco (Bacchus), 1778, etching on heavy laid paper [first edition impression printed in the Calcografia in 1778-79], National Gallery of Art, Washington. https://dartabase.art/cite/nga/742 Francisco Goya, Margarita de Austria, 1778, etching and drypoint on heavy laid paper [first edition impression printed in the Calcografia in 1778-79], National Gallery of Art, Washington. https://dartabase.art/cite/nga/7638