A kaleidoscope of currency reveals what humans have valued over time. Hi-resolution scans of banknotes from 23 countries ranging from the 1800s to the modern-day. Machine learning programs were used to zoom in on the intricacies of the engravings.
2015
2005
1978
2011
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1936
2017
2020
2019
1954
1998
2010
2006
2007