Currency codes (ISO 4217), v1:2014
For example, the currency code for official currency in Denmark is indicated with "DKK", where "DK" is Denmark's country code in ISO 3166 and "K" is the
https://www.dst.dk/en/Statistik/dokumentation/nomenklaturer/valuta-iso?id=b7a2a372-69de-4ab3-a41d-36de32f17563