The publication, which put out its first issue in 1974, stoked outrage while setting new boundaries for bad taste, libidinous images and newsstand embargos.
Johnston first photographed friends and willing acquaintances, then manipulated the portraits she took, burning and etching away at the images until faces and bodies faded into the collaged scenes.
Yet her images, adorned with everything from glitter to ink, conceal the real identities of her subjects, placing the viewer in the impish role of protected voyeur.