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. information form components
7. layout features

Anotations

Scope note:

Straight lines drawn on paper as part of a layout or for guidance of the scribe; included are the plain or decorative linear elements on a manuscript or printed page, the lines of a stave of music, and other similar lines.