This file is in the public domain because it is a mechanical scan or photocopy of the original public domain work belonging to the archive group No. 1: "Ilustrowany Kurier Codzienny (1910-1939)" of the National Digital Archive, available at www.audiovis.nac.gov.pl. This template must not be used to dedicate an uploader's own work to the public domain; CC0 should be used instead. This work must carry justifications for free usability in both the United States and its country of origin.

Licensing details:

Photographs available at www.audiovis.nac.gov.pl are public domain or the owner of the copy rights is the State Treasury, represented by the National Digital Archive, which grants free of charge licence for free use of the materials on all known exploitation fields.

Source: O zbiorach (in Polish and English) [accessed 2017-10-16].