World Collection of Banknotes - OS - 100 korun - 2019 #Commemorative Overprint on P-28 in celebration of the 100th anniversary of the Czech koruna. P-30a Silver foil imprinting in watermark area: "
100 Euros (EUR) to Korunas (CZK) - Currency Converter
The Koruna Czech Currency - Prague Travel
File:100 CZK reverse (2019).jpg - Wikipedia
Czech koruna - Wikipedia
2019: 100th anniversary of Czech currency and special numismatic issues