Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by origin]
6. biological material
7. animal material
8. processed animal material
9. leather
10. [leather by process]
11. vegetable-tanned leather
12. vegetable-tanned sheepskin

Anotations

Scope note:

Thin, soft leather made of unsplit sheepskin, similar to basil but firmer and usually tanned with sumach, given a dark finish with a smooth grain in imitation of morocco; popular in bookbinding as a less expensive substitute for morocco from 1790 into the 19th century.