Hierarchy classification:

1. top of the aat hierarchies
2. Brand Names Facet
3. Brand Names (hierarchy name)
4. brand name materials
5. Agfacolor (TM)

Additional parents:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication
4. Visual Works
5. visual works
6. visual works by material or technique
7. photographs
8. photographs by form
9. positives
10. photographic transparencies
11. additive color screen plates

Anotations

Scope note:

Additive color screen plates introduced by Agfa Company on the German market in 1916. There are four generations of this additive color screen process on plate: Agfa Farbenplatte (1916-1923), Neue Agfa Farbenplatte (1923-1932), Agfacolor-Platte (1932-1938) and Agfacolor Ultra (1936-1938).