Authenticate this Mulberry Please!

The disc is the metal tag inside the bag, under where the mulberry logo is. The serial number is on the back of this disc, however not all mulberrys have one; I think mulberry did put them on, then they stopped doing it and then they restarted it again, so its quite possible that genuine bags dont have a serial number.
 
The disc is the metal tag inside the bag, under where the mulberry logo is. The serial number is on the back of this disc, however not all mulberrys have one; I think mulberry did put them on, then they stopped doing it and then they restarted it again, so its quite possible that genuine bags dont have a serial number.


thanks hulahoop, i just checked, mine doesn't have a serial number.