CULTUREPhotos: Double FeatureA new exhibition looks back to the heyday of Yves Saint Laurent and Halston.by Kat Herriman02.06.151Halston printed knit cotton dress, c.1976, USA; and Yves Saint Laurent printed silk chiffon dress, 1971, France. Courtesy of the Museum at FIT.2Halston purple cashmere evening ensemble, c. 1973, USA. Courtesy of the Museum at FIT.3Saint Laurent Rive Gauche ensemble, 1976, France, and Halston wool ensemble, 1970-71, USA. Courtesy of the Museum at FIT.4Yves Saint Laurent evening dress, 1976, France. Courtesy of the Museum at FIT.