These very handsome cuff links are vintage circa 1900's. They are marked only "Hayward" and although they look like gold, must be gold filled as they do not test gold. The top side is a brushed, deep, gold color and the back side is polished rose gold colored. They are light as a feather so must be hollow. The top portion measures 3/4 X 1/2 inch and the back portion measures 1/2 X 1/4 inches. The full length of the cuff links are 3/4 of an inch. They are in very good condition, no dings, etc. The only thing that I wish to mention is it looks like there is solder on the underside of the ends (see pictures). I could not polish this off. This wouldn't show when being worn.