Still Life on Kitchen Table with Celery, Parsley, Bowl, and Cruets; Léon Bonvin
Watercolor over pen and ink and graphite; roughly 7×9 inches (17 x 22 cm). In the Walters Art Museum, Baltimore which has both a downloadable and zoomable version of the image. There is also a zoomable version on Google Art Project, and a downloadable file on Wikimedia Commons.
As he often did, 19th century French painter Léon Bonvin started this piece with a pencil drawing, drew outlines of the intricate forms in pen and ink (dark brown iron gall ink) and filled in the outlines with delicately applied but definite washes of watercolor.