Does this shape appear in other series? Yes although not exactly. The few recorded examples of this shape exhibit various patterns of openings. Later Series 62 - itself quite variable - is like one of those patterns.
Height; 18 - 20 cm.
Collection; Brendan Pitcher
Another example is recorded with a top opening having three lobes not two as here.
Base incised Remued, Hand Made, 260. No image available.
A rare example of Remued pierced work. Virtually a basket shape, a fore-runner of Later Series 62.