Ref: 0009930-8: "Triskel" Seal

This is a refined Italian seal that consists of a waxed turned wooden handle and a bronze disc engraved with a Triskel.

The triskelion is the Celtic symbol by definition. Its name comes from the Greek "triskelés," which means three-legged. The symbolism of the triskelion has been interpreted in several ways. It is primarily a lucky charm, but it was originally intended as a solar symbol. Its three joined branches represent triplicity in unity.
It is often said that the triskel represents the three dynamic elements: water, air, fire. Earth would be the center.