Grolly's Biker Colours
Late 1960s
Grolly is Dennis Corcoran's nickname.
He rode with the Nightingales
biker gang.

The colours of the Nightingales
were a skull with wings.
Biker gangs knew each other
by the colours that they wore.
Dennis's gang was named after
their meeting place,
the Nightingale Cafe on Biggin Hill.
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