I've got a few other examples of South American "checkerboard" patterned textiles from before the Spanish invasion, they are saved on another computer. I should dig them out of my image archives!
This is one more example of the universality of the checkerboard pattern. I've seen examples of the checkerboard motif on 8,000 year old pottery from Iran. The oldest checkerboard pattern I've ever seen is from one of the caves at Lascaux and probably dates to about 17000 BCE. You can find it in this blog post.
Did the checkerboard pattern come over with humans when they moved to the New World (therefore dating to, perhaps, the time of the settlement of people at Monte Verde, Chile some 13,500 years ago, or perhaps some 32,000 years ago, if the dating of the rock shelter at Pedra Furada, Brazil is accepted as authentic)? Or, was it independently invented by textile weavers, perhaps by several textile weavers, scattered all around North, Central and South America, at some later dates? And if so, when?
This is a subject that continues to fascinate me. It can't come soon enough - my retirement! Then, assuming I'm still alive and kicking, I'll have time to explore subjects like this in depth. I've a whole list of them...