letterlocking category 25
See UHTBD, an example of letterlocking category 25, zero security score. Letterlocking category 25, high security score, is a placeholder.
Unlocking History Concept uri
https://letterlocking.org/doll/concept/250
Preferred label
letterlocking category 25
Alternative label
LC25; fold + lock-sa; f + lsa
Scope note
A letterpacket formed using the following manipulations: fold, lock-SA. Assigned security score: zero or high. High security score LC25 is a placeholder category.
Top concept
techniques
https://letterlocking.org/doll/concept/611
Broader/Parent concept
letterlocking category
https://letterlocking.org/doll/concept/225
Related concept
security score
https://letterlocking.org/doll/concept/469
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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DoLL: hierarchy (index) of concepts