Architectural sectional elevations and secure door components outlining the internal layout and entryway construction of a detention cell in Venice 插畫檔

This technical engineering engraving provides a detailed longitudinal cross-section and close-up hardware schematics focusing on the internal spacing and structural security features of an individual confinement room. Created during the nineteenth century, these specialized plans illustrate the penitentiary design and containment mechanisms implemented in Italy to reinforce cell isolation. The top diagram maps out the elevation of the cell interior featuring a built-in wooden bench and wall shelving alongside the threshold of the entryway leading to a main structural corridor, while the lower blueprints detail multi-angle orthographic projections, precise measurements, and cross-sections of a heavy timber door reinforced with large iron ironwork studs, massive strap hinges, and specialized sliding deadbolts.