All earlier Australian decimal banknotes remain legal tender in Australia even though they are no longer in circulation.
You may have problems getting a shopkeeper of tradesman to accept an old banknote though.
The Reserve Bank of Australia advises that old Australian banknotes can be presented at the Reserve Bank of Australia and most banks and exchanged for an equivalent value current Australian banknote.
The old Australian paper One Hundred Dollar note has the image of Sir Douglas Mawson on one side wearing his woollen balaclava. He was a famous Australian Antarctic explorer in the early 20th Century.
Sir Douglas Mawson was a famous English born, Australian Antarctic explorer, geologist and academic. The original paper Australian One Hundred Dollar note issued between 1984 and 1996, had Sir Douglas Mawson on the front, and John Tebbutt on the back. They were progressively withdrawn from circulation in favour of the polymer notes from 1996.
The first Australian Two Hundred Dollar coins were issued in 1980.
Such a banknote does not exist. The Australian One Hundred Dollar note was first issued in 1984.
Australian One Hundred Dollar note commencing with Serial ZHH were printed in 1992.
On the Australian one hundred dollar note is Sir John Monash
See the link below to the Reserve Bank of Australia for design features of the current Australian One Hundred Dollar note and all other current Australian banknotes.
The character on the holographic window of the Australian One Hundred Dollar note is a "Lyre Bird". These are part of the security devices included on all current Australian polymer banknotes.
The original paper Australian One Hundred Dollar note released between 1984 and 1996, had Sir Douglas Mawson (Antarctic Explorer and Professor of Geology) on the front, and John Tebbutt (Astronomer) on the back. They were progressively withdrawn from circulation in favour of the polymer notes from 1996.
The Australian One Hundred Dollar note is not rare at all. Since it is our highest denomination banknote, other than payday, most people do not have a pocket full of them.
100 divided by 10 = 10. 10 Australian Ten Dollar notes equal one Australian One Hundred Dollar note.
Australia does not currently have, and is not likely to have a Two Hundred Dollar note anytime in the foreseeable future.