5 Rigsdaler Nationalbanken, handwritten serial number, 2 impressed stamps

Nationalbanken i Kjøbenhavn had operated under a royal charter since 1818, and by the 1860s its note designs reflected a deliberate institutional conservatism — handwritten serials and impressed dry stamps were already anachronistic by European standards when this note was issued. The two impressed stamps served both as authentication and as a rudimentary cancellation mechanism, a practice the bank retained long after lithographic and typographic security printing had become common elsewhere.

Henrik Olrik was primarily a sculptor and medallist, and his involvement in banknote design was unusual — his background in relief work almost certainly informed the emphasis on stamp authentication over intaglio line-work.