Vintage Sterling Silver & Turquoise Naja on Melon & Round Beaded Necklace

Lovely vintage sterling silver Naja pendant with embedded turquoise stone paired with a 30-inch melon and round bead necklace. Pendant is 2 inches wide by 2.5 inches tall. The maker's mark on the back of the pendant appears to read "YMU" and is visible in one of the photos. The pendant is in good shape -- see photos. The beads in the necklace have some dents -- they are visible in the photos. The ends of the necklace are joined with an S-hook closure.