Hollow Bangle with Striations and Pellets

Hollow bangle with striations and pellets, in two pieces. The bangle has a rounded rectangular cross-section. The exterior surface has horizontal striations running around the circumference. The bangle is broken in two, with a clean break down one side. The metal is gray-green with yellow patches. The background is plain and light grey. The work, 'Hollow Bangle with Striations and Pellets', is by an unknown artist.