See Scan for perfs. 

Grey and Pink.

+BW variety (D)j 'Broken coast near Sydney and white flaw after i of Australia' CV $1500 for normal stamp of Australia.

Although the CV is very high for a normal Unoverprinted stamp, there is less demand for the NWPI overprints due to the specialised nature so the $1500 is not relevant although the NWPI variety is much rarer.

MANUS 23 Feb 20 CDS