Beautiful estate vintage sterling silver bench bead necklace with alternating round and saucer beads.
The 28” necklace has a tab clasp and the beads are strung on a sterling chain.
The round beads graduate from about 8mm to 12mm, and the saucer disk beads graduate from about 15mm to 23mm.
The clasp is marked, though partially covered. It reads (Mex)ico 925 and the city code looks like (G)-45. G is most likely Guadalajara.