Charles Sprague Pearce, ‘Diagram of a Lunette [verso]’, 1890/1897, National Gallery of Art, Washington, D.C.
sheet: 31.8 x 48.9 cm (12 1/2 x 19 1/4 in.)

About Charles Sprague Pearce

American, 1851-1914, Boston, Massachusetts, based in Paris, France