Originally issued in $8 booklets, but from 18th February 1994 also issued in sheets. The two issues are indistinguishable except by cuts to the perforations.
Stanley gibbons does not list the two versions separately.
Only issued in $8 booklets imperforate on the left or right.
Campbell-Paterson and Stanley Gibbons assigns the same catalogue number to both imperf left and imperf right.