Vtg D&E Juliana BOOK PIECE Montana Blue Etched Bracelet & Earring Set
The bracelet has a flat push-in clasp and an original safety chain, and the earrings are clip-on. You can see this design on pages 80, 81, 82, 83 of "Juliana Jewelry Reference Book Identification Guide DeLizza and Elster" by Ann Pitman.