This simple and classic Mexican silver necklace choker is made in chain mail style.  There are several marks:  maker's mark TNC (Mentioned in The Little Book of Mexican Silver Trade and Mexican Hallmarks) and "0.925" and "Hecho en Mexico" are imprinted on the outside of the tongue in groove closure.

Length: 40.5 cm (16"). Width is 1.2 cm ( 1/2"). Weight is 36 g.