vintage blue glass wrap around necklace with matching drop screw on earrings

VINTAGE BLUE GLASS WRAP AROUND NECKLACE WITH MATCHING DROP SCREW ON EARRINGS, no name, very delicate silvertone chain, has tiny lite blue glass spacers, the necklace is 20"L 7 THE EARRINGS ARE A 2"DROP. I WAS TOLD THIS WAS A "BOOK PIECE" have no clue, i liked it & wore it.