The serial number is on the back of the vertical card holder, and it's difficult to take a picture of it, so I've added a photo. Authentic CHANEL This wallet has many pockets and compartments, allowing you to efficiently organize and store cards, bills, coins, etc. It's a wallet that can be stylishly used by a wide range of women, from adult women to young women, and it's sure to be an item that makes going out fun♪ Chanel wallets can be used in any situation and maximize a woman's charm. It's an item that makes going out fun. It also has plenty of storage! [Product Details] ◆Brand: CHANEL Round zipper long wallet ◆Color: Black ◆Size: W21.5cm x H12.5cm x D3cm ◆Product Specifications: ・Zipper closure ・2 pockets with gussets ・2 pockets ・16 card pockets ・1 coin case No stains. The condition is quite beautiful. It's a CHANEL wallet with a refined air. Please refrain from purchasing if you are nervous about home storage. Thank you. Motif: Coco Mark