Celtic Pattern Knot
Courtesy Needpix.com
Mayan Symbol Aztec Ancient Mexico
Celtic Tribal Knot

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Celtic Tribal Knot
Courtesy Needpix.com
Terracotta Humbaba mask from Ur, Iraq. 2004?1595 BCE. Sulaymaniyah Museum, Iraq

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More complex form of the endless knot seen on a c. 400-year-old Chinese lacquerware dish
Decorative form of the Tibetan endless knot
Tibetan endless knot.