This is a large really nice mother of pearl, onyx, coral, and turquoise inlaid kachina bird ring.
The ring does not have a quality stamp and is of unknown silver content. It does have maker’s stamp of MB.
Ring size 7.5.
This ring is in excellent estate condition and maintains its original patina.
This came from the estate of a collector who worked for several years as a physician in a hospital for Native Americans many years ago.