Authentic;serial number shown in photo This bag is crafted of textured calfskin leather and a tarnished/worn flip lock on the front. opens to a black suede leather interior with a zipper pocket. Went on vacation and lost the strap because I took it off to clean it. With that being said, I purchased a different strap off Amazon for the bag. Just being honest. Also missing three studs on the bag, but it is priced accordingly. Disclaimer: During Posh parties I usually lower the price but if it doesn't sell, it goes back to regular price $500