Do you have a KGV 1d checklist?
I am not aware of what that is, sorry.
"The 1d King George V Australian Commonwealth Stamps"
Surface printed types 1914 to 1937
Plating the King George V Die 2
Bert Wajer , Gordon Monk
Brusden White King George V 2007
12 other minor catalogues that address KGV amongst the Australian collections.