Trapelakucha element
Southern Chile, Temuco Region
Silver, with stamped designs
Ex June Bedford Collection, UK 
Size: 3 1/2" x 3" (9 x 7.5 cm)
This would have hung at the bottom of a woman's breast pendant, called a Trapelakucha.
The quatrefoil design represents the fourfold structure of the world as the Mapuche envisaged it.