Thanks much for the quick replying.. I've requested a photo, and this is what the seller replied,
"The only thing on the back of the tag is "made in Italy", no serial number. I'm not aware of them using serial numbers but if you say so I believe you. This bag is one of the first editions made back when Princess Diana was still alive. As soon as I saw hers I had to have one so my ex-husband ordered one from the Manhattan store for me. Apparently they now have "feet" on the bottom but back then they didn't do that."
Thanks