You're right! I remember seeing that a while back. I wonder who had the exclusive on the florentine chelsea...
Im guessing its some models they get in advance for advertising purposes for their retailers.. When I used to work for L'Occitane, we would get collections in advance, to see how they look, smell, what you have in it etc. They would arrive couple of months to a year earlier.
We didnt sell them though, but they would go to beauty journalists/magazine editors sometimes. I have no idea how this bag ended up in resale, and they even didnt have the style out.