Uncategorized Celtic Pattern KnotCourtesy Needpix.com Mayan Symbol Aztec Ancient Mexico Celtic Tribal Knot web-signs-and-symbols-073.jpg Celtic Tribal KnotCourtesy Needpix.com Terracotta Humbaba mask from Ur, Iraq. 2004?1595 BCE. Sulaymaniyah Museum, Iraq web-signs-and-symbols-0067.jpg 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.