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. photographic equipment
9. photographic processing equipment

Anotations

Scope note:

Electric, straight-handled irons used for dry mounting photographs by holding paper, dry-mounting tissue, and cardboard in place until they are put in a dry-mounting press, where they are thoroughly bound.