Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Furnishings (hierarchy name)
5. furnishings (works)
6. [furnishings by form or function]
7. lighting devices
8. [lighting devices by form]
9. lamps (lighting devices)
10. [lamps by form]
11. vertical wick lamps
12. Argand lamps

Anotations

Scope note:

Argand lamps fitted with a rod terminated by a plate which is positioned so that the air passing through the tube surrounded by the wick is deflected against the flame causing it to spread and become globular.