Working People Have May Day, May 1, 1977
Unquestionably a May Day poster for the ages. The quality wasn’t great (we were learning) but the message was clear and resonated.
The Tamiment Library and Robert F. Wagner Labor Archives at New York University houses a hard copy of this poster, with no attribution. It can be viewed online here.
For May Day; May 1, 1977

May Day, 1977