Unlocking History Number (UH#)
UH0042
Original
Queen Elizabeth I of England, Triangle Lock-O
Model and research notes
MIT Libraries, Unlocking History Research Group, MC0760, Box 16.
Letterlocking Unique Video Number(s) (LUV #s) & Instructional Video(s) URL
LUV042 https://youtu.be/o0XOxS0ZQWI
Instructional video info transcription
Forthcoming
Letterlocking category Number (LC #)
LC15L
Letterlocking format Number (LF #)
4RW
Security score
Low
Assessment of Confidence in assigning LC#
Attested
Substrate
Paper
Dimensions
Opened: H: 307mm x W: 205mm
Letterpacket: H: 78mm x W: 102mm
Manifestation
Opened
Distinctive letterlocking style(s)
Triangle lock-O
Locking Mechanism
Lock
Security enhancements
Address written across lock
Authenticated covered seal
Cross-hatching
Fake security
Hatching
Matching ink color
Matching handwriting
Matching lock with paper from which it was cut
Letterlocking category formula (shorthand)
LC15
Fold + slit/hole + lock-O + adhere (F + S/H/ + LO + A)
Letterlocking manipulation sequence (shorthand)
Fold + fold + fold + fold +fold + fold + slit + lock-O + adhere
Locking instructions
Forthcoming
Images
Forthcoming
Foldable(s)
Forthcoming
Step-by-steps
Forthcoming
Substrate map
Forthcoming
Virtual unfolding results
NA
Manipulations
Writing: Margin folds
Postal: NA
Opening: Seal tears
Filing (Storage, Display): Sewing holes
Repair: Mends
Damage
Tears
Features
Radiating wrinkles
Wrinkles
Article(s)
2023. Daniel Starza Smith & Jana Dambrogio. Letterlocking: securing correspondence before envelopes in Routledge Encyclopedia of the Renaissance World. Lauren Shohet, subject editor.
Book
Jana Dambrogio, Daniel Starza Smith, and the Unlocking History Research Group. Letterlocking, The Hidden History of the Letter. Cambridge and London: MIT Press, 2025.
Citation for the letter(s)
UH0042
Original
Elizabeth I’s letter to Sir Ralph Sadler (31 October 1584), the British Library, Add MS 89293, fols. 7r-8v.
Model
MIT Libraries, Unlocking History Research Group archive, MC0760, Box 16.
Video
LUV042
Jana Dambrogio and the Unlocking History Research Group. "Queen Elizabeth I of England, Triangle Lock (1584)," Letterlocking Instructional Videos. Unlocking History number 0042/Letterlocking Unique Video number: 0042. Filmed: December 2015. Duration: 4:25. Posted: March 2016. URL: https://youtu.be/o0XOxS0ZQWI. Accessed: March 4, 2025.