Kay Jewelers Necklace With Storage/Travel Case Woman's Fashion Accessories

Purchased at an estate sale. There is no information with this piece as to make up of necklace. White with clasp, comes in this folding case. 9 inches long as lays in the case. Case itself is 7 1/2 x 6 when folded. 17 inches long when opened. From a smoke free home. Thank you for looking ! loc/box7-24/4224