Hierarchy classification:

1. top of the aat hierarchies
2. Physical Attributes Facet
3. Attributes and Properties (hierarchy name)
4. [attributes and properties by specific type]
5. form attributes
6. size/dimensions
7. [size/dimensions by unit]
8. [size/dimension units for distance]

Anotations

Scope note:

Standardized linear units of measure made up of twelve inches, 1/3 of a yard; equal to 0.3048 meters. It was a unit of length in both the imperial and US customary systems of measurement; since 1959, both units have been defined as the same by international agreement. Originally the unit was based on the length of a man's foot, varying in exact length at different periods and in different countries.