The materials consist of design, preliminary, working, shop, and "as built" architectural drawings and maps of buildings and grounds owned or used by Yale University. The drawings range from original concepts to full scale details of equipment and ornamentation. The media vary from water colors, pen and ink sketches, pencil on tracing paper drawings to blueprints and photostats.
Left to right, buildings identified by Trumbull as "Projected Building, Chapel, Present Building, Buildings which may be erected hereafter." Illustrates the beginnings of the Old Brick Row.