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Numismatic Research

Across 2015, the Australian numismatic community saw a polymer $50 note that was truly unusual - it was violet and green in colour, and had designs vastly different to those we see in circulation. 

It turned out that the note was actually used by CSIRO across the 1970’s in their testing of different polymer substrates and security devices.

A few more have turned up since then - at first they were so unusual and remarkable that numismatists (myself included) didn’t particularly notice that there were in fact more than one different type available.

As time has passed and more have come onto the market, we’ve had some time to study them and it’s apparent that a listing of the different designs and types is necessary.

The information that follows is an attempt at preparing just that - a list of the different test notes prepared by CSIRO... read more

News & Views

Friday, December 14, 2018 - 12:59

The last major auction of 2019 was held in Sydney in late November - Noble... read more

Monday, October 15, 2018 - 13:03

The Numismatic Association of Australia (NAA) is the peak body for... read more