Examen Fortificatorium oder gründlicher Unterricht von der Theoria und Praxi der heutigen Kriegs-Bau-Kunst, in Fragen und Antwort verfasset ...
A 1703 German treatise on military fortification by Johann Sebastian Gruber, published by Johann Herbord Klossen, written as questions and answers for students of the art of war. Its plates are engraved diagrams of fortress plans, bastions, wall profiles and surveying figures, printed on pages with plain margins.
