Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by function]
6. photographic materials
7. photographic media
8. photographic plates

Anotations

Scope note:

Plates used in the wet collodion process that are coated with soluble iodide and a solution of collodion, or cellulose nitrate. In a darkroom the plate is immersed in a solution of silver nitrate to form silver iodide. The plate, still wet, is exposed in the camera.