Greenland 1910-1926 cardboard money chit full set M1 to M7 (?) unused. This is from the 1st series, no overprint or red stamp on back. These were later used as military money in WWII (those had a "Grl. Adm." red overprint on the front. The ones I'm selling are probably remnants found in the 1980's, totally unused. I bought those years ago from a Danish trader. Now impossible to find, there are later copies, but this is the real stuff. Catalogue value is well over $1000.00. WYSIWYG.