The competition involved two male competitors firing at each other with dueling pistols loaded with wax bullets and wearing protective equipment for the torso, face, and hands.
Unknown author / Wikipedia, Tiny Fox Lab

Pistol Dueling was a sportive event in 1908 Olympic games held in London. In this version of pistol dueling, the competitors were protected by heavy clothing and a metal mask with goggles. – Tiny Fox Lab Facts

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Source: en.wikipedia.org/wiki/O…