Yves Saint Laurent may he rest in peace.... This Totally Needs to be Solved. He was in the Jewelry Business Since 1959!!! Why are there 20 pieces on ebay. No internet guides on YSL Costume at all. The Jewelry books are very limited except for some of the following.... "Rive Gauge Made In France" "Haute Couture Line" "YSL" Couple Different Ways in the years past. "Yves Saint or St. Laurent" Plain.... Then There is the "Other Side" that is hard to see. Like Scribble something that makes no sense unless you put in under a loupe and angle it in a way to make the Y ........ S ....... L ....... like "PUZZLE ART"...... Remember What YSL Collected ART, STATUES, WONDERS OF THE WORLD. He used these influences in his jewelry in the early years without signing them. "Whom ever he had make them " That is where I think that we are missing the boat.... I wanted to write this to see if anyone else has any info to add to this. From my experience it is kind of like his "Signature but almost in a Louis Comfort Tiffany Style of Art Writing..... There are a few designers that made jewelry for him. Lets see if we can get to ten or more info on this from some of the pros out there or the artists themselves. Everyone will get credit and make this the best YSL Guide On The Net ! To The Best Of My Knowledge...... Monet 1980's , "Gucci 1999 to Present" 1. Your Name Here Along with a link to your screen name &/or ebay store name. 2. 3. 4. 5. 6. 7. 8. 9. 10.