Robert Crumb Poster 2nd National Hookers Convention 1975 using the cover art from Tricks [Coyote Growls] Volume 1 #3, 1975. “Margo St. James Collection. Margo St. James, Founded the organization C.O.Y.O.T.E. (Call Off Your Old Tired Ethics). An American self-described prostitute and International activist on Prostitution sex workers rights. Headliner for the Famous “HOOKERS’ MASQUERADE BALLS” in San Francisco. She was instrumental in founding the St. James Infirmary, a medical and social service organization serving sex workers in San Francisco.” -Grant Zahajko. Measures 11×17″ Screenprinted in 3 different colors: red, black, or blue.