This is likely part of the Camera bag 'styles', Spring/summer 2004, designed by Phoebe Philo, before the paddington, so way before I have info to authenticate. But....
You can try to gage if its real by some touch & smell methods. Is the leather thick and soft, are all the seams and stitches in great condition and well manufactured. Are the buckles and zips working well? smooth and not poor. Smells like leather? even inside should smell like leather unless was owned by a smoker? The embossing looks good. It should be fine if you check these things.