Fifteen Sketches for a Throne, Pen and brown ink, graphite on off-white laid paper, Top row: two angle views and two plans of platforms with thrones. Center row: three elevation, a plan of platforms with thrones; the right part of an elevation suggests a parapet, another suggests a parapet and a niche behind the throne. Bottom: five side and front views suggesting pedestals with panopiles at the bottom of the steps; a plan; front view of the seat alone. Dark brown strip along the bottom edge., Italy, ca. 1810, architecture, Drawing, Drawing