Interior is sticky. Serial number is there but is covered in the sticky residue of the bag. The black sticky residue is sloughing off inside the bag so please take care when inserting personal items inside. This will be need to be repaired by an authentic Gucci repair shop or retailer. Strap can be clamped on the left or right loop on the back. Has some surface defects from being used in the past and being in storage. Bag is vintage and is circa 1990s era. Is a genuine GUCCI BAMBOO item. Has been authenticated via third party app that it’s cross posted too. All items ARE PRELOVED & PREOWNED! Based on the condition of the item it will be considered a boutique item. This specific listing is cross posted via Mercari @thriftingdiva. It’s sold at a different price due to the fees taken out on that platform. However, this isn’t the same for all items in my shop, Im currently working to ensure all prices are similar or otherwise noted. Thank you for your support!