Labels:sketch | drawing | diagram | line art | origami OCR: K K H -------- 2 C 1 E E F · E K - C. h- A H D C B Vauban's First System ; Ground-plan ; A bastion ; B, curtain; C, tenaille; D, caponniere; E, ditch ; F, ravelin : G, covert-way ; H, salient place of arms; I, re-entering place of arms; K, glacis.
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