As we can see in the image, the coins of 1 and 2 Danish crowns differ from the rest because they have a hole in the center (as occurs in the 5 crowns). The monogram of the Queen of Denmark is drawn on these. You have all the information in: «The currency of Denmark: information and images of the Danish krone«.
You have all the information in: "The currency of Denmark: information and images of the Danish krone".