This one looks okay from these photos. However, I would need more photos for me to Authenticate... I would like to see a photo of the interior heat stamp, the bottom and back of the lock and the inside of the handles where it attaches to the bag.
I am a little stumped on this one. The details on the bag look good to me but you're right, I don't recall seeing a serial number like that. Please wait for Laurek, she knows Paddys much better than I do.