New York Corres Sponge Dance School of Vancouver invitation

Item is a mailing by Ray Johnson with text, "You are invited to the first New York Corres Sponge Dance School of Vancouver meeting for Mary Josephson, July 27th at nine pm at cool Paley Park, 35rd street between fifth avenue & madison avenue, New York City." The page includes drawings of rabbits with names: Alan Suicide, Vince Aletti, Marisol's Dog, Toby Spiselman, Judy Newman, Rain-Rien, Jim De Sana, Michael Cooper, Camille O'Grady, David Diao, Mary Christmas, Bijoux, Hala Pietkjewicz [Pietkiewicz], Paul Cezanne, Skag Mary, Walter Piston, Susan Blond, Sammy Davis Jr., Clement Greenberg, Charles Fodor, Dr. Brute [Eric Metcalfe], Albert M. Fine, Les Lyx, Glenn O'Brien, Jim Bohn, Laura Bohn, John Evans, Robert Smithson, Jean-Patrice Marandel, Patty Duke, John Dowd, Emily Wasserman, AA Bronson, Conrad Rooks, Sloppy Louie, and May Wilson.