Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Tools and Equipment (hierarchy name)
5. equipment
6. [equipment by process]
7. image-making equipment
8. photographic equipment
9. flash equipment

Anotations

Scope note:

Historical devices of varied design, but usually with a handheld tray intended to hold magnesium flash powder that would be ignited at the moment of exposure of a photographic plate. These were used before the advent of flash bulbs and later electronic flash devices.