I purchased this Celine bag at Isetan Shinjuku about 7 years ago for around 110,000 yen. I don't have the certificate, but please rest assured that it is definitely authentic. I believe there are no issues with its use, but the corners, surface, and overall condition are not very good, so please refrain from purchasing if you are concerned about this. I absolutely loved it and have used it about 40 times in total. I think it would look beautiful if the leather was repaired. The size is approximately 18cm in height and 25cm in width. The length of the shoulder strap is adjustable. The color is beige with gold lettering. The storage bag is wrinkled and also has some stains. Although it is a branded item, it will be shipped in simple packaging.