4-colour Crown (Harland 1970s)

Subtle colouring in a 4-colour crown. From under the central bubble 3 pink and 3 green rods wrapped in latticinio threads - alternate with 6 white latticinio twists - and swirl, anti-clockwise, over an opaque pale-blue inner core to meet in the centre of the base.
In the small, polished central concavity a circular, blue & white PY label covers the pontil mark!