Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. document genres
7. [documents by function]
8. [identifying markings and symbols]
9. marks (identifying markings)
10. [marks by location or context]

Anotations

Scope note:

Text and other symbols in the perforation areas on the sides of commercial photographic or motion picture films, typically showing frame numbers and other product information such as brand, type, and film speed.