First annual report of Schluchseewerk AG (1929-01-02 - 1929-12-31)
<a href="https://www.wikidata.org/wiki/Q2244959" class="extiw" title="d:Q2244959">Schluchseewerk-Aktiengesellschaft</a>
1930
Folder <a rel="nofollow" class="external text" href="http://purl.org/pressemappe20/folder/co/019784">Schluchseewerk AG</a> of the <a href="https://www.wikidata.org/wiki/Q36948990" class="extiw" title="d:Q36948990">20th Century Press Archives</a>