File:Chen-propaganda-poster.jpg

Anti-Chen Zaidao propaganda poster published by the Wuhan Iron and Steel Corporation in 1967 during the Wuhan Incident.

Source

 * From iisg.nl.

Fair use
This low-resolution image provides critical visual insights into the abovementioned incident and is a source of discussion in the article itself.

No free alternative can realistically be obtained, given
 * the incident occurred 40 years ago and is not ongoing;
 * the political groupings involved in the incident no longer exist and are not commemorated in their home country; and
 * there are no existing organisations or representatives of these organisations from which free media could be obtained.