Due to the overprinted Rigsdaler banknotes from the late 1700, we need a bank of issue to cover them.
I'm not completly sure which bank.
The original bank of issue is Courantbank in Copenhagen
https://en.numista.com/catalogue/issuing_entity.php?id=585
But the issuere/overprinter seems to be St. Croix (bank?).
There is no information about such bank on the big web though.
Siegs Seddelkatalog 2014 doesn't give much information either.
One of the banknotes, as an example:
Maybe one of the referees have an opinion: @titus17 or @Hibernia ?