Saint Laurent black calf leather Boston bag. Style Y 311210. Serial number inside pocket 311210-527066. Missing shoulder strap and cloche to front. Still very usable. The leather is in excellent condition with just a few light dents to base with minimal signs of wear to bag and inner suede lining. Comes with a small black envelope in a plastic wallet containing style label, care booklet, control slip and certificate of authenticity. We have checked the bag against guidelines for authenticity with regards to: Quality and feel of leather inside and out Metalware Zip and zip tag Handles Y buckle on closure Serial number inside inside pocket. Stamp quality of brand name inside and outside bag As a result, with the documents above, we believe the bag is authentic.