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. [equipment for drafting, drawing, and writing]
9. [drafting, drawing and writing equipment by specific type]

Narrower term/s

• beam compasses
• proportional compasses
• bow compasses
• pillar compasses
• Napier compasses

Anotations

Scope note:

Instruments for drawing circles and measuring the distance between two points; consisting of two pointed legs, movable on a joint or pivot, usually made so that one of the points can be detached for the insertion of a drawing implement or an extension.