The Whitefriars Wave ribbed vases are often confused with similar from other makers, but the Wave ribbing is very different on the look-a-likes.
Two examples below which are NOT Whitefriars (possibly Webb) . You will note that the wave ribs are in a continuous flow around the body of the vase.
The examples below are of Whitefriars vases, where the wave ribs are "drawn up" rather like a curtain at each wave intersection.
Pattern number 8473 Amber (left) and Twilight (right)
This is a view from the inside of a Whitefriars Wave ribbed vase which shows the six sided "star" shaped ribbing in the base. This is unique to Whitefriars.