At first glance, this map (?) Seems a piece of carved wood but is actually a map of the coast of Greenland. This map, dated 1884, was made by Eskimos (Inuit). While sailing along the coast, carved the edges of this piece of wood, creating a map for navigation.
Points and angles in the sculpture are corresponding with the geography of the coast. The angle on the edge of the map is related to the slope of the coast. Reading the map is made from south to north using the right side of the sculpture / map. When you reach the end of the sculpture / map on the right side, just move to the left to further interpretation.
This map / sculpture was on display at the Walters Art Museum (Baltimore, MD, USA) as part of the exhibition Maps: Finding Our Place in the World.