Documented Fall 1973 Haute Couture Yves Saint Laurent Silk GownI had this listed as from a slightly earlier collection based on the range of time that I knew the owner was purchasing couture during, and also on similar gowns from another season. However, since then I have found the editorial from Vogue, 1973 featuring a young Catherine Deneuve and am certain that this is the twin of this dress. It also apparently appears in the September issue of Elle from that same year but I have yet to hunt that one down. I