Louis Le Coeur, Si tu voulais, 1760, color aquatint and etching, National Gallery of Art, Washington. https://dartabase.art/cite/nga/3057

Louis Le Coeur, The Palais Royal--Garden's Walk / Promenade du Jardin du Palais Royal, 1787, wash manner with etching and engraving, printed in blue, red, yellow, and black inks, National Gallery of Art, Washington. https://dartabase.art/cite/nga/2896

Louis Le Coeur, Colin-maillard, 1789, color aquatint and etching, National Gallery of Art, Washington. https://dartabase.art/cite/nga/3032