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. prints (visual works)
8. [prints by process or technique]
9. [prints by process: transfer method]
10. photomechanical prints
11. photolithographs

Narrower term/s

• heliotypes (prints)
• phototypes (prints)

Anotations

Scope note:

Photomechanical prints produced by photolithography in which the printing plate is prepared using a bichromate process, gelatin, and greasy ink, which is held in the characteristic wormlike patterns of cracks.