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. furniture
8. [furniture by form or function]
9. seating furniture
10. single seating furniture
11. chairs (furniture forms)
12. [chairs by design]
13. folding chairs

Anotations

Scope note:

Refers to a specific design of folding chair first created by Giancarlo Piretti in the 1960s, characterized as a folding chair that could be easily stacked and opened with one hand, composed of a steel or aluminum frame with a press-molded transparent plastic backrest and seat.