1900. Cover from Kjøbenhavn 4.4.1900 to Otto Nordenskjöld in Sweden. Full content written by the leader of the East Greenland cartographic expedition Lieutenant C. G. Amdrup with the whaling bark S/Y ANTARCTIC. In teh enclosed letter Amdrup is thanking Nordenskjöld for his participation in the expedition as a geologist [ ✉ ]