One Half Design for a Painted Ceiling with Central Oval Left Blank

Anonymous, Italian, Piedmontese, 18th century · 1700–1780 · Pen and gray ink, brush and gray and black wash, over leadpoint or graphite, with ruled and compass construction. Scale in pen and brown ink over graphite, below the drawing

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