"Saigon"; poster repeats this word four times, with the colours changing from red white and blue to red blue and gold. "International Week of Solidarity with Viet-Nam (March 13-19)"
The Vietnam War: Popular Protest Comes of Age
Organization of Solidarity with the People of Asia, Africa and Latin America (OSPAAAL)
[1966 or after]
McMaster University Libraries
Copyright, public domain: McMaster University owns the rights to the archival copy of the digital image in TIFF format.