Unlocking History Concept uri
https://letterlocking.org/doll/concept/551
Preferred label
trapezoid-shaped closure flap
Alternative label
trapezoid flap
Scope note
A closure flap with four edges, in the shape of a trapezoid.
Top concept
features
https://letterlocking.org/doll/concept/605
Broader/Parent concept
closure flap (features)
https://letterlocking.org/doll/concept/516
Related concept
closure panel
https://letterlocking.org/doll/concept/57
The Arts & Architecture ThesaurusⓇ Online, The Getty Research Institute Concept uri
Not in AAT
The Language of Bindings Thesaurus (LoB) Concept uri
Not in LoB
Scope note source reference
Source
Jana Dambrogio and Daniel Starza Smith with the Unlocking History Research Group. Letterlocking: The Hidden History of the Letter. Cambridge and London: MIT Press, 2025.
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