Two look like suns and the other four like crescents. I looked up JM and there are six Navajo artists who have used these initials and none with this level of inlay.
All are vintage, all are Navajo. This may be attributable to James Mason. This bracelet has a sterling, complicated.Pueblo design on the sides, which are inlay into oxidized sterling. The gemstone inlay is raised and perfect! It continues on both sides, as well. The perfect intarsia Gems include; onyx, mother of pearl, lapis, oxblood coral, turquoise (from multiple mines), and sugalite. It is very comfortable to wear and for any gender. The inside measures just under 2.5 by 1.75'. The cuff opening is 1'. Each side of gems is 1 by. The top is 2 by. The depth from the gems to the cuff is.
If in the Gloucester, MA area, do stop by my shop on Main St--DIVA for an unrivaled selection of pieces from every time period, in every metal and at great prices. I have also been a maker and designer for almost 50 years. If you seek a particular piece, please do let me know! Please contact me with any questions/additional information needs. This item is in the category "Jewelry & Watches\Ethnic, Regional & Tribal\Bracelets & Charms".The seller is "bighairedgirl" and is located in this country: US. This item can be shipped worldwide.