These pieces were found together but not a true set. The necklace has 12K yellow gold filled clasp and jump rings that join the pieces all together while the screwback earrings have sterling silver findings glued to the back of the tortoise shell. They look great together since you cannot see the findings on the earrings from the front. Necklace measures about 15-1/2" long and 1/2" wide. The earrings are 1/2" x 1-1/8" and stamped sterling. Both pieces are in excellent condition with a beautiful polished and glossy finish. The earring findings are deeply tarnished. There is the number 25 etched into the back of the shell on the earrings, Not sure what they are there for but again cannot be seen from the front. Lovely old pieces for your collection.