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 context]
7. personal equipment
8. [equipment for personal vision use]

Additional parents:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment
4. Tools and Equipment
5. equipment
6. equipment by profession or discipline
7. equipment for science and technology
8. optical instruments

Narrower term/s

• field glasses
• opera glasses

Anotations

Scope note:

Optical devices for use with both eyes consisting of two small telescopes fitted together side by side on a single frame and containing an erecting system usually with both focusing tubes simultaneously adjustable by means of a single screw.