Design for a Part of a Painted Vaulted Ceiling with a Coat of Arms in Form of a Cross

Anonymous, Italian, Piedmontese, 18th century · 1700–1780 · Pen and brown ink, brush with gray, brown and red chalk wash, over graphite or leadpoint, with compass and ruled construction; stylus-incised construction outlines

From the collection of The Metropolitan Museum of Art. Free to download, adapt and use — no permission needed.