Does this shape appear in other series?   Yes - the smaller size appears as Later Series 46, and Early Series examples are also recorded, un-numbered, as PPP and Remued. There is a jug version of this shape, Early Series 192.

Early Series 150 is somewhat similar to the larger size but not as tall.

Two sizes are recorded. There is some confusion regarding suffixes and too few examples to resolve the confusion. The largest recorded piece (19cm) is earliest (PPP) and incised just 124 (no suffix). The smaller pieces are numbered 124 and 124s.  No 124L is yet recorded but the existence of an s suffix suggests that an L version may have existed.

Un-numbered

Incised Remued.

Stamped PPP and incised 124

Incised Remued 124s

Incised Remued  124

Un-numbered

Stamped PPP