424  (Early Series)   Posy ring.
:
Does this shape appear in other series?   Yes, although the only recorded Early Series example is slightly larger than the Later Series version which is Later Series 163.
A similar posy ring also appeared as  'A' Series / Kerryl A111 .

There was also a half-ring version, Early Series 425

Diameter; 17.5 cm

Early Series 424 (left) with Later Series 163 (centre) and an un-numbered half-ring
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