More of a classification, Boyar Helmets incorporated a Conical (fitted), Half- Helm with a Chain Mail cowl. Similar to the Nasal Helmet, the Mail Coif was often drawn up over the face (under the eyes). This provided a form of both facial and head protection. Originated by The Boyer (Steppe) Clans, the style was very popular with many Central and Eastern European Kingdoms. Many variations split from the basic design. First seen around the 10th Century, it would last well into the 16th Century (with some Ottoman Units).