This is an ongoing joint project by the University Library Wroclaw and the Library of the Friedrich-Ebert-Stiftung. The portal offers digitised German-language sources about organised workers and employees in Breslau (now Wroclaw) in the period before 1933.

Two types of sources are available: books and periodicals. Some sources are directly available in PDF-format, others can be consulted through the digital library of the University Library Wroclaw and are offered in the DjVu format.