Baumeister owned a few works of ancient American art from the Precolumbian period, Central America, and ancient Peruvian cultures. Many objects came from a time that preceded the Incan Empire. The sign-like quality is so pronounced, even in the mimicry of some figures, that we can understand Baumeister's interest in this culture. He also collected ancient Peruvian weavings.
The statuary art of early high cultures found manifestation in numerous paintings, such as the Maya Wall of 1946 with its interlocking figures. There is even a direct correspondence to a pair of figures in the picture Aztec Couple of 1948. In a certain sense Willi Baumeister translated the style of the Aztec culture into his own - painterly - language.