Unlocking History number (UH#)
UH0054
Original
Rowe Triangle Letter, Connecticut
Model and research notes
MIT Libraries, Unlocking History Research Group archive, MC0760, Box 25.
Letterlocking Unique Video number(s) (LUV #s) & Instructional video(s) URL
LUV054 https://youtu.be/fj9eKSCaDWc
Instructional video info transcription
Forthcoming
Letterlocking Category number (LC #)
LC02Z
Letterlocking Format number (LF #)
3T
Security score
Zero
Assessment of Confidence in assigning LC#
Attested
Substrate
Paper
Dimensions
Forthcoming
Manifestation
Opened
Distinctive letterlocking style(s)
Triangle format
Locking mechanism
Tuck
Security enhancements
NA
Letterlocking category formula (shorthand)
LC3
Fold + Slit/Hole
(F + S/H)
Letterlocking manipulation sequence (shorthand)
Forthcoming
Locking instructions
Forthcoming
Images
Forthcoming
Foldable(s)
Forthcoming
Step-by-steps
Forthcoming
Substrate map
Forthcoming
Virtual unfolding results
NA
Manipulations
Writing: NA
Postal: NA
Opening: NA,
Filing (Storage, Display): NA
Repair: NA
Damage
NA
Features
NA
Article(s)
NA
Book
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.
Citation for the letter(s)
UH0054
Original and model
Mary Rowe, MIT Libraries, Unlocking History Research Group archive, MC0760, Box 31.
Video
LUV054
Jana Dambrogio and the Unlocking History Research Group, “Rowe Triangle Letter, Connecticut USA (1940s),” Letterlocking Instructional Videos. Unlocking History number 0054/Letterlocking Unique Video number: 0054. Filmed: December 2015. Duration: 1:50. URL: https://youtu.be/fj9eKSCaDWc. Accessed: March 4, 2025.