Preferred label

Under/over seal                

Alternative label

Under/over exposed seal

Scope note

A two-step process to adhere a letterpacket, where adhesive is first placed between two layers of substrate then on top to create an exposed seal.

Parent concept   

Seal (locking appendage)        

uh-linked-data/concept/451      

Related concept      

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, Daniel Starza Smith, and the Unlocking History Research Group. Letterlocking, The Hidden History of the Letter. Cambridge and London: MIT Press, 2025.

Unlocking History Concept uri

uh-linked-data/concept/572