Sydney Gay Mardi Gras Poster, Feb 23, 1985. Design Peter Tully. Photos William Yang. “Of course, it was attacks like these that showed just how important Mardi Gras was. It was more than ‘just’ a parade or a party. It was a demonstration of community strength and cohesion at a time when we were under attack – from both the disease and those who would use it to deny our basic human rights.” Offset Lithograph. measures 21 x 31 inches.