Kölner Domblatt (1842-1892) – digitized
The "Kölner Domblatt", which was published from 1842 until 1892, is the most comprehensive source of information about Cologne Cathedral during the 19th Century. It published not only society notices, but also building reports from the architect and important articles about the art history of the Cathedral and other buildings.
The Cologne Cathedral Newsletter (Kölner Domblatt) has always been published by the "Zentral-Dombau-Verein zu Köln von 1842" (ZDV). Available via the internet site of the ZDV are covers of the Newsletter, with tables of contents, from the year 1948 up to the current volume.