Tratado quinto dela artilleria
A Spanish artillery treatise dated 1735, compiled in the Burndy Library collection and held by the Smithsonian Libraries, aimed at military engineers and gunners. Its single picture is a pen-and-ink cross-section of a domed or vaulted structure with a gabled roof, arched masonry, and a measured baseline, showing the construction logic a designer could borrow for architectural section drawings.
