I've got 2x 1988 $10 Bicentennial notes, the worlds first Polymer note.
Serials numbers are only 3 apart, shame they are not consecutive.
Uncirculated notes I picked these up when I was working for a foreign exchange company in Sydney airport.
They are miscut on the lower edge.
A problem that the printers had to overcome given the slippery nature of the note sheets they were cutting.
Wonder what they would be worth?