Set of 5 design drawings.

Drawing, pen and black ink, watercolour, wove paper, 36 x 57 cm, 62,5 x 84 cm (sm. defects, minor foxing).

Drawing exercises: 1. Land surveying, making use of the levelling compass in Woluwe-Saint-Pierre, - 2. Marine infrastructure, - 3-4. Entrenchments, particularly interesting is the Antwerp type: "Place d'Anvers. Front avec ravelin appliqué", and - 5. Other military equipment from the "École d'application" and the "42 Promotion" at the Royal Military Academy.
Ref. Vankerckhove; Rouen - Description de la place et du camp retranché d'Anvers. Brussels, C. Muquardt, 1869 (pl. at the end).