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
Geheimes Staatsarchiv Preußischer Kulturbesitz - Alternative names for repository: Geheimes Staatsarchiv PK
City: Berlin
Country: Germany
Germanisches Nationalmuseum 5 City: Nürnberg
Alternative names for city: Nuremberg
Country: Germany
Glamorgan Archives 3 City: Cardiff
Country: Wales, United Kingdom
Glasgow University Library 2 Alternative names for repository: Glasgow University Special Collections
City: Glasgow
Country: Scotland, United Kingdom
Gottfried Wilhelm Leibniz Bibliothek 78 Alternative names for repository: Niedersächsische Landesbibliothek Niedersachsische Landesbibliothek Königliche Bibliothek, Hannover (formerly) GWLB Niedersächsische and Leibniz Bibliothek [incorrect name]
City: Hannover
Alternative names for city: Hanover
Country: Germany
Gray's Inn Library - City: London
Country: England, United Kingdom
Guildhall Library 21 City: London
Country: England, United Kingdom