License, verbatimPD
FHXB Friedrichshain-Kreuzberg Museum, via Europeana: image published under Public Domain Mark 1.0 (http://creativecommons.org/publicdomain/mark/1.0/). Rights statement as supplied by the contributing institution to Europeana.
Werbepostkarte "Lor-Kohle für elektrische Zwecke G. m. b. H.", Wilhelmstraße 9. . Europeana (aggregator, 4,000+ institutions).