1 3/4" long, hammered out by hand with tiny hammers, a tiny ruby in each serpent's head, and two diamonds in the centre head.
Repoussé is used to shape a piece of metal by working on the reverse of the metal with small hammers to form a raised design on the front. Chasing is is the opposite technique used to refine the design on the front of the work by hammering to sink the metal.