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 method of illumination]

Anotations

Scope note:

Lamps equipped with containers for calcium carbide, a reservoir of water with a controlled drip, and a nozzle or burner for the combustion of the acetylene gas produced by bringing the water into contact with the calcium carbide; also lamps with acetylene burners connected to a central source of acetylene.