This is an interesting video showing the lives of nomadic Mongolians in the 1930s. It looks like the video was shot in inner Mongolia by the Japanese. It has nice footage showing yurts, horses, and Mongolians performing some ceremony. Notice that the yurts are covered only in felt, with no cotton outer cover.

A Rare Glimpse of Mongolia from the 1970s
In 1974, a Western television crew filmed the first documentary

