Ouroboros (Snake eat tail). Silver 925 ring. Different sizes.

The Ouroboros pictures on tombs symbolize immortality, eternity and wisdom. In many myths it encompasses the whole world and identifies itself with the circular flow of the earth's waters. It can support the world and its existance, and at the same time it brings death into life and life into death. Immobile on the outside, it symbolizes the eternal movement always returning to itself.