Giovanni Antonio Canal, detto il Canaletto, La festa del giovedì grasso in Piazzetta (The Giovedì Grasso Festival in the Piazzetta [Piazza San Marco in Venice]). Pen and brown ink with gray wash over graphite and red chalk heightened with white gouache, on laid paper; 1765-1766. Wolfgang Ratjen Collection; Paul Mellon Fund; National Gallery of Art; Washington, D.C..