La castrametation. / By Symon Stevin. -- Rotterdam, J. Waesbergue, 1618. -- 16 sheets ; 2° Signature Formula: π⁴ A-G⁴ (G4 blank). -- Fingerprint: 161802 - b1 A e : b2 G3 r$le; 161802 - a1=a2 A2 uis - b1 A e : b2 G3 r$le. -- Some copies prelims signed A2 [STCN ID: 84119419X]