Hmm..this is a very tricky one.
The leather and the outside of the bag appears identical to my black cerf.
The white tag that came with the bag is the same number as the one that I have-but it can be faked.
Maybe you could ask the seller for the number that appears on the black authenticity card to check
However there are a few differences:
1. In the photo, the inner lining of the tote is dark grey, mine is black - I don't know if this is because this is an older tote though.
2. Chanel cloth label sewn inside the bag - the "reserved" trademark is much bigger and closer to the "L" in the name Chanel than the one I have.
It does look very much like the one that I have but there are discrepancies.
I have my doubts on its authenticity.