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. bookbinding equipment

Anotations

Scope note:

Small wooden devices used to sew sections of a book to sewing supports, consisting of a platform, usually with two vertical threaded uprights that support an adjustable horizontal crossbar. The sewing supports are stretched taut between the platform and crossbar.