Jean-François Janinet after Hubert Robert, ‘Colonade et Jardins du Palais Medicis (Colonnade and Gardens of the Medici Palace)’, ca. 1776, National Gallery of Art, Washington, D.C.
sheet (trimmed within plate mark at top & bottom): 29.1 x 24.4 cm (11 7/16 x 9 5/8 in.)