Saint Laurent Black/Gold Python Embossed Leather Small Kate Wallet on Chain size17x11x4 (Excellent with db) Excellent condition Verified by Entrupy. We ensure authenticity of all items in our showroom with a 100% money back guarantee. Each, and every item that arrives in to our showroom is thoroughly vetted by - Expert Bag Official - Al Entrupy Verification to ensure appropriate condition and also authenticity. How it works. Entrupy uses artificial intelligence and machine learning algorithms to authenticate select luxury branded handbags and accessories. We submit microscopic images of logos, leathers, hardware, and materials via high level cameras where the algorithms will score the item as either authentic or unverified based on the images submitted.