Those of us whose German is weak owe a debt of gratitude to Frank Schloeffel at Salon Jewish Studies, who is translating into English Klaus Graf's Archivalia updates on the recovery effort at the Historical Archives of the City of Cologne.
The latest translated post brings some good news: three shifts of 20 volunteer archivists are working non-stop at the site, and "up to 15-20% of the archival inventory" has been recovered. Among the materials recovered are two manuscripts written by medieval German theologian Albertus Magnus, dozens of medieval codices, and four of the five volumes of the 16th-century chronicle written by Cologne Councilman Hermann von Weinsberg. Of course, the condition of the records varies widely: some are in astonishingly good shape, while others are wet, torn, or both, and others are likely unsalvageable.
Some amazing photos of the recovery effort and recovered materials are available via Bild (mouse over the image to make scrolling arrows appear), the Kölnische Rundschau, and the Express; American readers should note that the Express page may include content that would likely be considered NSFW in the United States.
(Hat tip: Felipe Diez of Solidarity Köln Historisches Archiv)