70  (Later Series)    Jam dish, wavy edge.

Does this shape appear in other series?  No - (none in image database).
There is some similarity to  PPP bowls Early Series 80 and Early Series 92.

Diameter; 11 - 12 cm

Shape book 'A'

(Another shape is showing through from the reverse side of the shape-book page)

Collection; Stuart Lawson