Historical glass slide collection updated

Newly integrated into prometheus with 18,876 records is the first part of the about 50,000 glass slides of the Mediathek of the Institute for Art and Image History of the Humboldt University of Berlin.

These slides, with the monochrome photographic layer applied directly to the glass plate, were produced from the 1890s to the 1960s, used until about 1990, and digitized in 2016. Novel forms of identifying the image objects with Wikidata were tested during the area-wide acquisition, which was the focus of the project: