Vintage cream shell & ivory bead necklace

Vintage beachy & boho ivory- / cream-colored shell pieces & white bead necklace. The necklace has a thin & dainty white bead-covered chain that measures 17 inches long & has a screw-on enclosure. The middle of the necklace has shell fragment pieces alternating with white beads. The shell part of the necklace measures 7.5 inches by .9 inches. Some normal wear with use over time, but in great vintage condition!