This is an interesting find. The presence of this cavalry face mask in Hadrianopolis, Turkey offers new insight into the Roman presence in this area.     https://www.msn.com/en-us/news/world/roman-soldiers-face-mask-dating-back-1800-years-uncovered-in-turkey/ar-AAR2kY8 Roman calvary mask found in Nijmegen, Netherlands. Roman cavalry masks have long been a source of controversy. It is unclear whether they were strictly ceremonial or whether they were sometimes used in