rectangular gold filled engraved Art Deco locket on original ribbon

A spectacular rectangular gold filled art deco locket on the original ribbon necklace. The necklace measures 42 inches and has a dog clip at the end and an embossed slide. The locket measures 2 inches including the bale at the top, and it is engine turned and engraved on the front with the monogram ESR. The locket weighs 18.55 g and has space and frames for two pictures. It contains one picture of a gentleman now and is signed S and S. the dog clip is signed Hayward.