Design for the Decoration of the Conch of a Niche, Pen and sepia ink, brush and gray watercolor, graphite on paper, Horizontal rectangle. Divided into three compartments, framed by upright stripes with garlands and with a shell on top above an entablature, which is supported by consoles at the ends of the stripes. The compartments are decorated with lozenges or coffers, with rosettes inside. Outside framed by insular mouldings in front of which is an escutcheon with the arms of a layman, supported by genii., Rome, Italy, ca. 1750, architecture, interiors, Drawing, Drawing