heptagon format
See UH6102
Unlocking History Concept uri
https://letterlocking.org/doll/concept/178
Preferred label
heptagon format
Alternative label
7H (acronym)
Scope note
A letterpacket with seven distinct edges.
Top concept
techniques
https://letterlocking.org/doll/concept/611
Broader/Parent concept
letterlocking format
https://letterlocking.org/doll/concept/295
Related concept
letterlocking category
https://letterlocking.org/doll/concept/225
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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