This is my old Louis Vuitton wallet. I purchased the wallet in Miami about 20 years ago. I haven't used it for ages, but I hereby state that it is authentic / original.
It is in pretty good shape, with some edges a bit scuffed, and one of the inside pockets is ripped (shown in the photo).
The dimensions are: 9.5 x 4 inches when open and 3.5 x 4 inches when closed.
As I bought the wallet so long ago, I do not have the receipt. However, again, I can assure you the wallet is an original, authentic and is NOT a fake!