Anonymous, Italian, Piedmontese, 18th century

Design for 1/4 of a Ceiling, and Ornamentation of a Section of a Vault

1700–1780

Pen and black ink, brush and gray wash, over leadpoint or graphite, with ruled construction. Framing outline at upper, right, and lower borders in brush and black ink. Measuring scale on right border in pen and gray ink over graphite or leadpoint

41.4 × 26.7 cm (16.3 × 10.5 in)