St. Peter's, centering truss, tunnel vault, section (recto) blank (verso)

Unidentified, Doric cornice, elevation; Theater of Marcellus, Doric cornice, elevation (recto) Unidentified, cornice, elevation (verso)

Drawn by Anonymous, French, 16th century

S. Maria in Domnica, portico, plan; details, profile (recto) blank (verso)

Drawn by Anonymous, French, 16th century

Wooden Framework to Support Arches in a Building, from "Speculum Romanae Magnificentiae"

Jacob Bos, Antonio Lafreri

Moldings for Gothic Library Bookcase, from Chippendale Drawings, Vol. II

Thomas Chippendale

Plan of the Operating Gear of a Mill

Attributed to Anonymous, British, 18th century

Moldings for Library Bookcase, from Chippendale Drawings, Vol. II

Thomas Chippendale

Moldings for Library Bookcase, from Chippendale Drawings, Vol. II

Thomas Chippendale

Half-Section of the Model of the Attic and Dome of Saint Peter's Basilica as Conceived by Michelangelo (recto); Detail Studies Relating to the Plan, Section, and Elevation of the Dome of Saint Peter's Basilica (verso).

Etienne DuPérac

St. Peter's, dome and drum, interior section and elevation, and labeled details (recto); St. Peter's, moulding profiles, details (verso)

Attributed to Etienne DuPérac

Moldings for Gothic Library Bookcase, from Chippendale Drawings, Vol. II

Thomas Chippendale

Cortile del Belvedere, Upper Courtyard, stair, plan (recto) blank (verso)

Drawn by Anonymous, French, 16th century

Plan for Garden Pavilion

After Robert Morris