Unlocking History number (UH#)
UH0053
Original
Weronika Gralak's locked letter (UH0053) to Władysława Kerbaczewska in an envelope (UH0020)
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
LUV053 https://youtu.be/Q7bYUkmFF8w
Instructional video info transcription
Forthcoming
Letterlocking Category number (LC #)
LC02Z + envelope, Document Security
Letterlocking Format number (LF #)
4RW
Security score
Zero
Assessment of Confidence in assigning LC#
Attested
Substrate
Paper
Dimensions
Opened (in mm): H: 285mm x W: 228mm
Letterpacket (in mm): H: 88mm x W: 152mm
Manifestation
Opened
Distinctive letterlocking style(s)
NA
Locking mechanism
Tuck
Security enhancements
NA
Letterlocking category formula (shorthand)
LC2
Fold + Tuck
(F + T)
Letterlocking manipulation sequence (shorthand)
Fold + fold + fold + fold +fold + tuck + inserted into envelope
Locking instructions
Forthcoming
Images
Forthcoming
Foldable(s)
Forthcoming
Step-by-steps
Forthcoming
Substrate map
Forthcoming
Virtual unfolding results
NA
Manipulations
Writing: NA
Postal: Postage marks
Opening: Tears
Filing (Storage, Display): NA
Repair: NA
Damage
NA
Features
Dirt on panels/ in crease
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)
UH0053, UH0020 envelope
Original
Weronika Gralak to Władysława Kerbaczewska (14 February 1953). MIT Libraries, Unlocking History Research Group archive, MC0760, Box 31.
Model
MIT Libraries, Unlocking History Research Group archive, MC0760, Box 25.
Video
LUV053
Jana Dambrogio, Daniel Starza Smith, and the Unlocking History Research Group, “Weronika Gralak locked letter to Władysława Kerbaczewska, Poland (1957).” Letterlocking Instructional Videos. Unlocking History number 0053/Letterlocking Unique Video number: 0053, 0020. Filmed: December 2015. Duration: 1:34. Posted: March 2016. URL: https://youtu.be/Q7bYUkmFF8w. Accessed March 4, 2025.