Scalinata della Trinit? dei Monti, ca. 1756?58, Pen and black ink, brush and gray wash, watercolor, over graphite, 13-11/16 x 11-9/16 in. (34. 8 x 29. 3 cm), Drawings, Giovanni Paolo Panini (Italian, Piacenza 1691?1765 Rome), This watercolor seems to have been intended as an artistic end in itself, since it is not a study for a known painting. Panini did use the composition, however, in a series of pairs of paintings executed between 1756 and 1758, representing picture galleries crowded with many views of either ancient or modern Rome