Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by form]
6. [materials by physical form]
7. [fiber and fiber by product]
8. [fiber by product]
9. paper (fiber product)
10. [paper by form]
11. pasteboard (paper)
12. cardboard

Anotations

Scope note:

Sheet material in which the medium is made from cardboard with a honeycomb core. Acid-free honeycomb board is used in conservation as a support panel in treatment of materials and objects such as parchment, textiles, maps, and drawings.