41. Ingapirca Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Date: 1981 Format: Image
42. Ingapirca Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Date: 1981 Format: Image
43. Rumicucho Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Pucara de Rumicucho Site (Ecuador) Date: 1981 Format: Image
44. Rumicucho Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Pucara de Rumicucho Site (Ecuador) Date: 1981 Format: Image
45. Rumicucho Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Pucara de Rumicucho Site (Ecuador) Date: 1981 Format: Image
46. Rumicucho Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Pucara de Rumicucho Site (Ecuador) Date: 1981 Format: Image
47. Rumicucho Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Pucara de Rumicucho Site (Ecuador) Date: 1981 Format: Image
48. Ingapirca Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Date: 1981 Format: Image
49. Rumicucho Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Pucara de Rumicucho Site (Ecuador) Date: 1981 Format: Image
50. Castillo , W. horizon seen from the East Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Castillo (Ingapirca Site, Ecuador) Date: 1981 Format: Image