A vintage ESSEX CRYSTAL REVERSE INTAGLIO STICKPIN of a BOSTON TERRIER. Circa 1930s. The circular bezel mount actually tests 10K gold but might possibly be gold-filled. The back and pin stem appear to be brass. The circular top features a head portrait of a BOSTON TERRIER, facing right. The dog wears a studded collar. The stickpin measures 2 1/4 inches in length. The circular top measures 5/8 inches in diameter. In excellent condition. Please see enlargements and note that any white spots are caused by glare from the camera.