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:

Protective headwear for tank crews, in a variety of designs since the advent of the tank as a modern war machine during WWI. Meant to protect against bumps and projectiles; more recent versions are provided with fixtures for the attachment of communication devices.