Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. architectural elements
7. [structural elements and components for structural elements]
8. structural elements
9. enclosing structural elements
10. [roofs and roof components]
11. roof components
12. exterior roof components
13. roof appendages

Anotations

Scope note:

Small, open structures erected on a roof, wall, or gable of a church or other structure, carrying and sheltering bells. For the timber framework supporting bells in order to absorb the vibrations of their swinging, use "bell cages."