Australian Pre-decimal Banknote-During the reign of Queen Elizabeth 11

The Illustration below shows the Australian Pre-decimal One Pound Note. The obverse shows the Australian Coat of Arms and a portrait of Queen Elizabeth the 2nd. The reverse has two portraits one of Charles Sturt the other of Hamilton Hume.
The note size is 154.94 mm in width and 81.28 mm in height
Paper is 83 gsm
Signatories are also H.C. Coombs and Roland Wilson.
Watermark is Captain Cook in left oval with ONE POUND behind each signature.
The notes were printed in both emerald green and dark green varieties with a mintage for 500,544.000 for both types

The reverse of the Reserve Bank pound note showed a major colour change mid-way through its 5 year production run. The shade was modified from dark to emerald green. The change occurred at some point during the printing of notes with the serial prefix of HI 06.

Prefixes were HF,HG,HH and HI over numerals with the final number unknown