Unlocking History Concept uri
https://letterlocking.org/doll/concept/410
Preferred label
Rectangle extra-tall format
Alternative label
Quadrilateral – Rectangle extra tall format; 4RXT
Scope note
A letterpacket with four distinct edges. When oriented so the address can be read, the left and right edges are notably longer than the others.
Broader concept/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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