Roman soldiers using two forms of battering ram

Roman soldiers using two forms of battering ram against the walls of a fortress. B is hung on a chain hanging from a frame, so enabling the men to concentrate their strength on thrusting the battering ram forward rather than the simpler form carried on their shoulders. C is mounted on a siege tower. From Poliorceticon sive de machinis tormentis telis by Justus Lipsius (Joost Lips) (Antwerp, 1605). Engraving

1605 Antwerp Battering Concentrate Enabling Forms Hung Joost Justus Lips Lipsius Machinis Poliorceticon Rather Seige Simpler Sive Telis Tormentis

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