Recto: "Libro Primo, Chapo Quarto..." (Vitruvius, Book 1, Chapter 4); Verso: The Fortification of City Walls (Vitruvius, Book 1, Chapter 5).

Plate 2, from "Trattato delle Piante & Immagini de Sacri Edifizi di Terra Santa" (Treatise of the Plans & Images of the Sacred Buildings of the Holy Land)

Jacques Callot, After designs by Bernardino Amico, Pietro Cecconcelli

Crenelated Fortress (verso)

Agostino Carracci

View of Lyon

Philippe Auguste Hennequin

Studies of Architectural Motifs

Anonymous, French, 18th century

The Castel Sant'Angelo and the Pont Sant'Angelo in Rome, various boats unloading to right, two pilgrims with children seated to left, from "Varie Figure"

Stefano della Bella, François Langlois

The Square Tower

Claude Lorrain (Claude Gellée), Commissioned by Manuel de Moura

Sketches of Castles (verso)

Netherlands

Plate 15, from "Trattato delle Piante & Immagini de Sacri Edifizi di Terra Santa" (Treatise of the Plans & Images of the Sacred Buildings of the Holy Land)

Jacques Callot, After designs by Bernardino Amico, Pietro Cecconcelli

Palazzo Alberini-Cicciaporci, half elevation (recto) blank (verso)

Drawn by Anonymous, French, 16th century

Sketch for a Ceiling

Anonymous, Italian, 16th century

Ruins with Farm Shed

Unknown artist

Tem. Ro. Penatibus Dicatu, from a Series of 24 Depicting (Reconstructed) Buildings from Roman Antiquity

Anonymous, Italian, 16th century, Previously attributed to Monogrammist G.A. with the Caltrop