PNR 4 - German "Air Moves" / "Luft Bewegt" series

Further Reading:
https://numismag.com/en/2019/07/28/an...
https://www.absoluteartgallery.com/da...
https://www.bundesbank.de/en/tasks/ca...
https://www.bundesbank.de/en/tasks/ca...
https://www.bundesbank.de/en/tasks/ca...
https://www.bundesbank.de/en/tasks/ca...
https://en.wikipedia.org/wiki/Niobium
https://en.wikipedia.org/wiki/Land_sa...
https://en.numista.com/catalogue/piec...
https://en.numista.com/catalogue/piec...
https://en.numista.com/catalogue/piec...

Image Credits:
Planet Earth coin picture by Nils Thies
10 euro series picture provided by Deutsche Bundesbank
Land sailing picture by Benedict, CC BY-SA 3.0, https://commons.wikimedia.org/w/index...
Andre Witting picture from https://numismag.com/en/2019/07/28/an...
Wind surfing picture by EncMstr - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index...
Daniel Engelberg picture from https://www.arsmundi.de/en/artists/en...