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.
1949
1946
2012
2020
2005
2016
1981
2008
1962
1976
1948
1968
2018
1933
1997