Just a few a additional pics, hopefully a little clearer.
Can't seem to find the shape in the Whitefriars catalogues. In terms of colour the main body appears aqua and has deep purple streaks running through. The exact colour of the purple streaks are a little hard to capture on camera.
Not sure its intentional or not, there is also an extremely small slope across the top of the rim.
Came from a collection with other Whitefriars pieces. Any info appreciated.