The latest tax discs to be issued have no perforations (cut out yourself) and look like an 'in-house' photo-copy as the DVLA have now run out of proper tax discs and don't want to order anymore to be printed professionally.......includes a note with disc to tell you this.
Oh, those ones won't be worth anything. But MY last ever limited edition 30/09/2014 one... that's another story. Get it while stocks last