Photo of a man from the Machiguenga (Machigenga) ethnicity.  This image was taken by photographer Chuck Clark in the 1960s when he was working for SIL (Summer Institute of Linguistics).  Clark was neither a linguist nor a missionary.  However, he was (as still is) a talented photographer who captured this important historical moment when the Machiguenga people were first introduced to outsiders.  The Machiguengas he met lived in isolated villages in the Amazon Rainforest and most had never seen someone from outside their ethnic group.  Clark documented their uncontaminated traditional culture with his remarkable photographs in the true tradition of visual anthropology.