Pewter did you name yourself after this bag? If so, I can see why.FX, this bag is definitely real. I have the exact same bag. The '04 metallics came with a metal plate but the '05 metallics come with a leather tag only. Not all cities have silverplates.
Please refer to here:
atelier.naff: The art of the tag: reading the inside of a Balenciaga bag
Pewter did you name yourself after this bag? If so, I can see why.