Festungsbau, idealtypischer Entwurf, Schanzen mit Schusslinien

Unknown artist

Fortress building, ideal-typical design, bedbugs with inscription of the lines of fire, Joseph Henry, circa 1790. Feather/paper. 42.1 x 26.4 cm. Bez: "Projecte par le Major Francke dessine par Henry, Bas-Officier du Corps des:“Scales with unit of measurement” Toisen “(1 Toise (Klafter) = 6 ft) and” Saechs Manoever Maßor Ellen."(200 toises = 10.7 cm; 700 Saxon step = 11.5 cm).