Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. inorganic material
7. glass (material)
8. [glass by technique]
9. art glass (material)

Anotations

Scope note:

A type of art glass developed and produced by the Württembergische Metallwarenfabrik (W.M.F.) by Karl Weidman ca. 1926. It is characterized by the use of colorless, raw glass made iridescent by a silver stain and then matte fired, resulting in a shimmering metallic surface.