Manuscript plan of the "Stelling Den Helder": the oldest surviving defence line in Dutch military history, including the important marine shipyard Willemsoord

[FORTIFICATION PLAN - DEN HELDER - WILLEMSOORD]. KRAG, Rasmus.
Kort over en deel af provindsen Nordholland med befestningen af de Helder, maritime & etablissementet Willemsoort samt en deel af den nye Nordhollandske Canal.
[The Netherlands?], 1825. Double Elephant 1mo sheet (92 x 63 cm). With a pen and ink-drawn fortification plan (ca. 85 x 55 cm) of the Den Helder fortifications and the marine shipyard Willemsoord, coloured by a contemporary hand, with a manuscript title, scales and a key in Danish, written in a fine and legible 19th-century hand surrounding the plan. On Whatman wove paper. Folded. [1] sheet. Full description
€ 1,800
[The Netherlands?], 1825. Double Elephant 1mo sheet (92 x 63 cm). With a pen and ink-drawn fortification plan (ca. 85 x 55 cm) of the Den Helder fortifications and the marine shipyard Willemsoord, coloured by a contemporary hand, with a manuscript title, scales and a key in Danish, written in a fine and legible 19th-century hand surrounding the plan. On Whatman wove paper. Folded. [1] sheet. Full description