Unlocking History number (UH#)

UH0161



Original

Ludwig von Beethoven’s folded letter to Karl Holz 



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

LUV161 https://youtu.be/d04hwTPAUiI 



Instructional video info transcription

Forthcoming



Letterlocking Category number (LC #)

LC01Z



Letterlocking Format number (LF #)

4S



Security score

Zero



Assessment of Confidence in assigning LC#

Inferred



Substrate

Paper



Dimensions

Opened (in mm):       H: 208mm x W: 260mm

Letterpacket (in mm): H:   30mm x W:  50mm



Manifestation

Opened



Distinctive letterlocking style(s)

NA



Locking mechanism

NA, Fold



Security enhancements

NA 



Letterlocking category formula (shorthand)

LC1 

Fold

(F)



Letterlocking manipulation sequence (shorthand)

Fold + fold + fold + fold + fold + fold + fold  + fold 



Locking instructions

Fold long-edge to long-edge, keep folded. fold long-edge to long-edge, keep folded. fold long-edge to long-edge, keep folded. double roll-folded closed gatefold. 



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: Mends



Damage

Tears

Ink Corrosion



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)

UH0161

Original 

Ludwig van Beethoven to Karl Holz (date not known). Houghton Library, Harvard University, bMS Lowell, fol. 20.



Model

MIT Libraries, Unlocking History Research Group archive, MC0760, Box 25.



Video

LUV161

Jana Dambrogio and the Unlocking History Research Group, “Beethoven’s folded letter to Karl Holz, Europe (date not known).” Letterlocking Instructional Videos. Unlocking History number 0161/Letterlocking Unique Video number: 0161. Filmed: December 2017. Duration: 2:26. https://youtu.be/d04hwTPAUiI. Accessed March 4, 2025.






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