https://greekcitytimes.com/2020/12/07/greek-illyrian-helmet-croatia/     https://www.greecehighdefinition.com/blog/rare-ancient-greek-illyrian-helmet-found-in-croatia   Summary: I don't know anything about ancient helmets and nothing about this Greek Illyrian helmet, presumably from the Archaic period of ancient Greece.   Below is a nice review of the Greek helmets       https://www.ancient-origins.net/news-history-archaeolog