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. document genres
7. [documents by function]
8. [identifying markings and symbols]
9. marks (identifying markings)
10. [marks by function]

Anotations

Scope note:

Official stamps affixed by guilds or assay offices upon articles made of gold or silver as evidence of the quality of the metal. Distinguished from "makers' marks" which are stamped on articles of gold or silver for the purpose of identifying the craftsman or workshop of origin.