Letterlocking: The Hidden History of the Letter
The rich history of a centuries-old document security technology—folding and securing a letter into its own envelope for delivery—and a comprehensive guide to learning how to make your own locked letters.

Before the invention of the gummed envelope in the 1830s, how did people secure their private letters? The answer is letterlocking—the ingenious process of securing a letter using a combination of folds, tucks, slits, or adhesives such as sealing wax, so that it becomes its own envelope. This almost entirely forgotten practice, used by historical figures ranging from Elizabeth I and her spymaster to Japanese samurai lords, was an everyday activity for centuries, across cultures, borders, and social classes. In Letterlocking, Jana Dambrogio and Daniel Starza Smith, experts who have pioneered the field over the last ten years, tell the fascinating story of letterlocking within epistolary history, drawing on real historical examples from all over the world.

Fully illustrated with more than 300 images and diagrams, including a dictionary of sixty technical terms and concepts, Letterlocking describes the essential precepts of the practice and provides sources of practical support needed for beginner and advanced users of letterlocking. The authors also advocate for the understanding of letterlocking and for its inclusion in a range of intellectual and cultural research, from conservation science and archival databases to historical television shows. By the end of the book, readers will learn how to make locked letters, study letters that may have been locked, and categorize those letters using systems the authors developed while studying over 250,000 historic letters.

Letterlocking will be accompanied by a website, freely accessible scholarly articles, and instructional videos and diagrams, as well as foldable tear-out sheets with instructions on how to fold and lock models of extant historical letters.
1145200759
Letterlocking: The Hidden History of the Letter
The rich history of a centuries-old document security technology—folding and securing a letter into its own envelope for delivery—and a comprehensive guide to learning how to make your own locked letters.

Before the invention of the gummed envelope in the 1830s, how did people secure their private letters? The answer is letterlocking—the ingenious process of securing a letter using a combination of folds, tucks, slits, or adhesives such as sealing wax, so that it becomes its own envelope. This almost entirely forgotten practice, used by historical figures ranging from Elizabeth I and her spymaster to Japanese samurai lords, was an everyday activity for centuries, across cultures, borders, and social classes. In Letterlocking, Jana Dambrogio and Daniel Starza Smith, experts who have pioneered the field over the last ten years, tell the fascinating story of letterlocking within epistolary history, drawing on real historical examples from all over the world.

Fully illustrated with more than 300 images and diagrams, including a dictionary of sixty technical terms and concepts, Letterlocking describes the essential precepts of the practice and provides sources of practical support needed for beginner and advanced users of letterlocking. The authors also advocate for the understanding of letterlocking and for its inclusion in a range of intellectual and cultural research, from conservation science and archival databases to historical television shows. By the end of the book, readers will learn how to make locked letters, study letters that may have been locked, and categorize those letters using systems the authors developed while studying over 250,000 historic letters.

Letterlocking will be accompanied by a website, freely accessible scholarly articles, and instructional videos and diagrams, as well as foldable tear-out sheets with instructions on how to fold and lock models of extant historical letters.
24.99 Pre Order
Letterlocking: The Hidden History of the Letter

Letterlocking: The Hidden History of the Letter

Letterlocking: The Hidden History of the Letter

Letterlocking: The Hidden History of the Letter

eBook

$24.99 
Available for Pre-Order. This item will be released on March 4, 2025

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Overview

The rich history of a centuries-old document security technology—folding and securing a letter into its own envelope for delivery—and a comprehensive guide to learning how to make your own locked letters.

Before the invention of the gummed envelope in the 1830s, how did people secure their private letters? The answer is letterlocking—the ingenious process of securing a letter using a combination of folds, tucks, slits, or adhesives such as sealing wax, so that it becomes its own envelope. This almost entirely forgotten practice, used by historical figures ranging from Elizabeth I and her spymaster to Japanese samurai lords, was an everyday activity for centuries, across cultures, borders, and social classes. In Letterlocking, Jana Dambrogio and Daniel Starza Smith, experts who have pioneered the field over the last ten years, tell the fascinating story of letterlocking within epistolary history, drawing on real historical examples from all over the world.

Fully illustrated with more than 300 images and diagrams, including a dictionary of sixty technical terms and concepts, Letterlocking describes the essential precepts of the practice and provides sources of practical support needed for beginner and advanced users of letterlocking. The authors also advocate for the understanding of letterlocking and for its inclusion in a range of intellectual and cultural research, from conservation science and archival databases to historical television shows. By the end of the book, readers will learn how to make locked letters, study letters that may have been locked, and categorize those letters using systems the authors developed while studying over 250,000 historic letters.

Letterlocking will be accompanied by a website, freely accessible scholarly articles, and instructional videos and diagrams, as well as foldable tear-out sheets with instructions on how to fold and lock models of extant historical letters.

Product Details

ISBN-13: 9780262380010
Publisher: MIT Press
Publication date: 03/04/2025
Sold by: Penguin Random House Publisher Services
Format: eBook
Pages: 528
Sales rank: 534,252

About the Author

Jana Dambrogio is Thomas F. Peterson (1957) Conservator for Massachusetts Institute of Technology Libraries. She previously held positions at the US National Archives, the United Nations, and the Vatican Apostolic Archives.

Daniel Starza Smith is Senior Lecturer in Early Modern English Literature at King’s College London. His books include John Donne and the Conway Papers and (with coeditor Joshua Eckhardt) Manuscript Miscellanies in Early Modern England. He is General Editor of the correspondence of John Donne for Oxford University Press.

Dambrogio and Smith are founders of the Unlocking History Research Group (letterlocking.org), an international and interdisciplinary collection of experts dedicated to studying historical communication technologies.

What People are Saying About This

From the Publisher

Letterlocking is thrilling: deep archival work is deployed with generous clarity and élan to open up lost practices of epistolary production, circulation, and reception.”
—Adam Smyth, Professor, Balliol College, Oxford University; author of The Book-Makers: A History of the Book in 18 Lives
 
“It is not often that scholars can initiate a completely new field, but here we have a work of stunning originality. This will be essential reading for anyone interested in the history of communication.”
—Andrew Pettegree, Bishop Wardlaw Professor, University of St Andrews
 
“Securing communication remains a prime concern in the digital age, and this book reveals a long ancestry to technological means of ensuring the privacy of messages. Letterlocking is an essential study of a fascinating tradition in the history of communication . . . Hugely important.”
—Richard Ovenden, Bodley’s Librarian, Bodleian Libraries, University of Oxford
 
“Dambrogio and Smith’s work has helped me to see our collections with fresh eyes and understand them better. They’ve documented these long-overlooked practices with remarkable thoroughness and clarity.”
—John Overholt, Curator of the Donald and Mary Hyde Collection of Dr. Samuel Johnson and Early Books and Manuscripts, Houghton Library, Harvard University

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