Vintage Taxco Mexican 925 Solid Sterling Silver Cast g to get g

Vintage solid cast Taxco sterling silver chevron style choker cuff style necklace with two rounded openings at the center. Hallmarked “925MEX” on one side and “TV-13” on the other.  Molded by hand around a chest form to sit perfectly on a woman’s décolletage.  Weighs 35g. 13.5” end to end external measurement, with an additional adjustable gap that measures +\- 2”.  Internal measurement is 12.25”.  Width at the center is 18mm and tapers down to 5mm width at the ends.