Two alternate designs for stucco for an Italian ceiling Wall Art

"Two alternate designs for stucco for an Italian ceiling" by Anonymous, Italian, Piedmontese, 18th century, 1700–80. Pen and dark brown ink, brush and gray an red chalk wash over leadpoint or graphite, with ruled and compass construction; scale at bottom of drawing in pen and brown ink over leadpoint or graphite. Original high-resolution public-domain artwork from The Metropolitan Museum of Art.