Originally, I thought these were Zuni earrings, but the mark looks Mexican to me and very much like an early Los Castillo hallmark so I'm including them here; beautiful, flush cluster sterling and turquoise screwback earrings; about  1-1/4" x 7/8" marked with an illegible mark and "STERLING;" some wear, a slight crack in one stone, otherwise fine condition.

$150.00 (item #HG023)