The original artwork possibly by Pat Owen?
PAN X610 from 1967 (1st)
PAN 0330 020765 from 1970 (3rd)
PAN 0330 020765 from 1971 (5th)
PAN 0330 020765 from 1975 (11th)
PAN 0330 020765 from 1984 (20th)