After we received the results of the network we double-checked unlikely results by hand. This included some 60 books printed after 1550 which were classified as fonts predominantly used in the incunabula era - Rotunda, Textura, Gotico-Antiqua and Bastarda. In most cases these were actually empty pages with text bleeding through the other side of the page. Occasionally there were also tables with arabic numerals which were classified wrongly as one of the fonts mentioned above. We decided to delete this small number of misclassified books.