Two flats hinged together on the vertical. Also Two-Fold (US).
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Two flats hinged together in order to be self-supporting when folded on the hinge.
Found on
https://www.encyclo.co.uk/local/20411
Two flats hinged together on the vertical edge, to be free standing, and normally used as a backing for a doorway or window. They should always be 'run' with the hinged edge leading, to prevent them opening up. Book flats are free-standing when angled open, allowing quick setting and compact storage. Booking describes the action of opening or closi...
Found on
https://www.theatrecrafts.com/
No exact match found.
