Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by general context]
6. hardware (components)
7. [hardware by form]
8. finish hardware (hardware)
9. hardware handles (finish hardware)
10. hardware knobs (finish hardware)

Anotations

Scope note:

A form of door hardware that consists of a single knob fastened to one end of a spindle, on the other end of which is a rose or plate used to secure the knob and spindle to the closet door. Distinguished from "doorknobs," in which a pair of knobs on opposite ends of a spindle is used to release the door latch.