The Prima Macchina for the Chinea of 1759: A Fortress

Giuseppe Vasi, after Giuseppe Palazzi, after Paolo Posi

National Gallery of Art

The image shows an architectural drawing viewed from a slightly elevated point. The structure is symmetrical with a central round tower decorated with statues and cloud-like elements. Flanking the central tower are square towers with flags. The background features a sky filled with detailed clouds. The drawing is in a monochromatic color palette with precise line engraving depicting textures, forms, and shadows. Figures in period attire and a carriage are in the foreground, adding a human scale. Further back, bridges and windows adorn the walls.