Project for an altar in a side chapel, Pencil, pen, ink, brush, and grey watercolor on paper, Vertical composition of an altar. The back wall of the chapel has the outlines of the entrance of a church. The mensa has the shape of a sarcophagus, flanked by pilasters and embedded columns. In the center there are clouds with three cherubim and an angel supporting a cross., Rome, Italy, 1725-1750, architecture, interiors, Drawing, Drawing