You might be able to see from the existing photo further up the thread. You can see where the moulding has been cut away and then filled and painted but the edge still shows. You can also see how the seat is flush with the new shape of the moulding. I suspect this may be non standard as the standard moulding now sticks out by a centimetre at the front, tapering to flush at the back. Also, the way the seat covering fits is not the same both sides. It fits pretty well on the left ( as in the photo) but less so on the right, with staples exposed.
