The newest euro notes
There's more than meets the eye in the new bank notes circulating in Europe as of today.

The 100- and 200-euro bills are the last of the "Europa" designs to go into use since 2013. The 5, 10, 20 and 50 preceded them.

The newest bills have extra security features, only a few of which the European Central Bank has disclosed.

For one, a hologram shows a portrait of Europa as well as small € symbols that move around and become clearer under direct light. (In Greekmythology, Europa was a nymph seduced by Zeus posing as a white bull. Her image was taken from a vase in the Louvre.)

There may be other features - like infrared watermarks - readable only by machines.

To read the complete article (scroll down), see:
(https://www.nytimes.com/2019/05/28/briefing/european-parliament-macron-austria.html)