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. signaling equipment

Anotations

Scope note:

Hand-held devices consisting of square flags on two short poles used in a semaphore system for conveying information at a distance by means of visual signals. The flags are held in any of eight possible positions to signal letters of the alphabet and numbers.