Abalone shell and Wood Marquetry Brooches

Two small brooches, origin and age unknown, from estate of a relative. The lovely iridescent blue/green abalone shell pin is L 1-1/2 x W 1-1/2 inches. The square wood pin with marquetry veneer design of triangles is L 1-1/4 x W 1-1/4 inches. Both brooches are in good condition.