Note: every manifestation of a letter is counted, so the number of documents in a repository may be larger than the number of letters.

Repository Number of documents Further details
Die Herzogin Anna Amalia Bibliothek 5 Alternative names for repository: Zentralbibliothek der deutschen Klassik, Weimar (until 1991) Herzogin Anna Amalia Bibliothek
City: Weimar
Country: Germany
Downing College Library, University of Cambridge - Alternative names for repository: The Maitland Robinson Library
City: Cambridge
Country: England, United Kingdom
Dr Williams's Library 20 Alternative names for repository: DWL
City: London
Country: England, United Kingdom
Durham Cathedral Library 3 City: Durham, County Durham
Country: England, United Kingdom
Durham County Record Office 1 Alternative names for repository: Durham Record Office DRO
City: Durham
Country: England, United Kingdom