Columbus Verlag, School Tellurium, Berlin, ca. 1930s Travel & Exploration Books The earth ball connected by

The earth ball connected by gearing to a handle on the metal base to replicate the movement of the earth around the sun

Paper size: 12 x 17 1/4 in

were primary sources for cartographic intelligence on Mexico and the emerging western territories of the United States

secondaries rounded

not only surveyed 800 miles of the coast

Columbus Verlag, School Tellurium, Berlin, ca. 1930s Travel & Exploration Books The earth ball connected byColumbus Verlag School Tellurium Painted cast metal base, supporting an electric light (sun) and aluminum shade, with 7 inch papered astronomical calendar below, metal arm extending out to a papered 5 inch diameter earth ball stamped Columbus Erdglobus. Lacking moon ball and wire. The earth ball connected by gearing to a handle on the metal base to replicate the movement of the earth around the sun. Berlin, ca. 1930s Height 16 in.; Length 25 in. A