Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. information artifacts
7. [information artifacts by function]

Additional parents:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts
4. social science concepts
5. psychological concepts
6. mnemonics

Anotations

Scope note:

Hand-sized wooden boards covered with beads, shells, and carvings, created and used by the Mbudye secret society of the Luba people to recall their genesis myth and other complex information about the history, organization, and functioning of the society.