H.: 3/16 in. (0.45.2 cm)
Diam.: 2 1/16 in. (5.2 cm)
Gift of J. Pierpont Morgan, 1917
Not on view
Translucent blue, with opaque red trails. Circular band; round in section; flattened into square section at seam where ends of rod have been pressed together with irregular tooling marks. Decoration comprises two trails wound thirteen times in a spiral pattern. Intact; slight dulling and many patches of iridescent weathering.