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. [tool and equipment components]
7. camera components
8. film holders (camera components)

Anotations

Scope note:

Frames used to hold inflexible photosensitized plates made of glass, rigid plastic, metal, or other materials. These are components used in medium and large format cameras for dry or wet plate photography.