1987: Typo in Australia's Legal Tender May 24, 2020

The Australian government printed its $50 bill from 2018, 46 million times with a typo in it. Part of the reason is that it took several months past the printing to catch the error since it was in microprint, as an anti-counterfeit (or if you will, simply 'feit') precaution. That is, there is an excerpt from an Edith Cowen speech which is printed in letters too small to read with the naked eye using the spelling 'responsibilty', lacking the i in '-ity'. This was not noticed until several months after the printing, and is still legal tender.

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