Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Visual Works (hierarchy name)
5. visual works (works)
6. [visual works by material or technique]
7. photographs
8. [photographs by form]
9. positives (photographs)
10. photographic prints
11. [photographic prints by process]

Anotations

Scope note:

Color prints produced through three black-and-white separation negatives. In this process, yellow, magenta and cyan gelatine films sensitized with silver bromide are transferred to a common support after exposure through the three negatives. The Duxochrome system is an improvement of the Pinatype. The materials were on the market from 1929 to 1963.