Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Costume (hierarchy name)
5. costume (mode of fashion)
6. [costume by function]
7. protective wear
8. armor
9. [armor by form]
10. body armor
11. [body armor for neck and head]
12. [body armor for the head]

Anotations

Scope note:

Open helmets usually forged in one piece, having at first an ogival-shaped skull, later a rounded one, which extended down to protect the cheeks, leaving a small opening for the face. They were in use from the mid-14th to the late 15th century.