Vintage chocker necklace with soft glowing pearl-like beads, classic style

Vintage chocker necklace. Simple clean classic look. With coin shaped off-white pearl-like beads, with a soft opalescent glow (possibly art glass). Old style gold tone clasp. 16" long. It looks like one round bead is missing because there is room to squeeze them all together and have a bit of extra space left near the clasp, as pictured. But if they are not squeezed, the gap is not visible.