Fortification Diagrams No. 1 and No. 2

The image is a black-and-white print divided into two horizontal registers, labeled 'N 1' and 'N 2'. The top register displays a crescent-shaped fortification wall built into a hilly terrain, featuring two towers with cross-shaped symbols near a small harbor where two masted ships are moored; several small figures carrying long poles or spears walk in the open landscape. The bottom register depicts a rectangular defensive enclosure with high crenellated walls, multiple towers, and a central tree; the layout includes rounded corner bastions equipped with mounted cannons and a stone block structure holding additional artillery pieces.

This print reflects the period's intense focus on military engineering and the modernization of defensive architecture during the early 17th century. It highlights the transition toward geometric fortification systems, which were becoming standard in the European military theater of the Thirty Years' War.