I've searched the uspto.gov/patents website as well as google.com/patents and to no avail. I am new to this and I know it must exist. I would like to start a patent application on a similar item but would like to rule out prior art.
Fashion, I believe, is more often protected by copyright than patents. If a patent were to exist, it would be a design patent. I went to https://patents.google.com/ and searched with "Chanel, Inc" as the assignee. I get about 25 hits, but only one of them is related to a handbag and that covers an ornamental clasp. Most are patents on the composition of cosmetics. My guess is there isn't a design patent, but the bag is probably covered by copyright (probably registered). I don't know anything about copyright, but there are many search hits related to fashion copyright infringement.