So I'm in the process of adding the Greenlandic Krone banknotes and sometimes Siegs catalog catalogs something as two banknote reference and Catalog of World Paper Money has it as one reference.
I have added a few of those and useally followed siegs references mostly, when in doubt of it should be one or two notes/referances. But in the 1911 issue, the 25 Øre, 50 Øre and 5 Kroner are devided by “perforated edge, no water mark” and “straight edge, watermark”.
I'm moslty for dividing them in two different types, since the difference is not really suble.
And while being at it, a note I still wait for validation on, but has requested to be added: The World Catalog also has P#5 as one. I can see an argument to seperate them in the 1897 and 1905 issue, since there is a (slight) colour difference.
BUT also seperating the 1897 into handwritten and stamped serial number.
As of now, I made it with two different types: The 1897 vs. 1905 type.
Have a look and come with your (considered) opinion, please 🤓
My sources for adding banknotes:
Standard Catalog of World Paper Money. General Issue: 1368 - 1960, 16th Edition. Page 612-615
Siegs Seddelkatalog Danmark. Slesvig Holsten, samt De Nordatlantiske Øer; Færøerne, Grønland, Island, Svalbard, Bjørnøen. 1695 - 1997
http://www.banknote.ws/COLLECTION/countries/AME/GRO/GRO.htm