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: Ci6
: Geological Maps & Plans
: Map
: Geologisk Kart over Det Nordlige Norge
: Map showing the geology of Norway
: Den Private Opmaalings lith Anstalt, Kristiania
: 1879
: Tellef Dahll, Messers Dr O. A.; Hjortdahl, Th.; Lassen, T.; Petersen, C. ; Corneliussen: Norway, Northern Europe, Europe: 1866-1879