这种法国重骑兵的胸甲是被炮弹击穿的。我收藏的一本书里 Great Military Leaders
and Their Campaigns 有这样的解说：

This breast plate worn by a soldier of the Second Carabinier Regiment and
pierced by a cannonball at Waterloo, is typical the body armour worn by
French heavy cavalry.Pigeon-breasted, such as a cuirass was capable of resisting
not only sword-cuts but also pistol- and musket- balls fired from a distance.
 Cannon-shot was another matter, however, as the damage to this one demonstrates.