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 technique]
9. [photographs by processing or presentation technique]

Anotations

Scope note:

Color stereographic photographs made by using two similar prints, one treated with dammar varnish to make it transparent, the other painted with washes of color; the former is laid over the latter and the two bound together with a glass and backing, achieving a three-dimensional effect.