Mapas de la región Andina [cartographic material] / [por la Comisión Chilena de Límites].Comisión Chilena de Límites1912?]Accompanied by two notice slips. Sheets 1-2, 7, 10-13, 15-25, 30-33 are duplicates; sheet 7 has three copies [numbers have been given locally].Includes 38 triangulation maps with title "Gráfico de los Trabajos Jeodésicos."Maps dated 1906-1912; several maps undated.Sheets arranged in order by degree of latitude at its northern edge.Title from index sheet.cartographic