This is a wonderful pair of asymmetrical Antonio Pineda cuff links that are made of sterling silver, actually of the 970 standard, and each set with a round cabochon moonstone. They are marked with the Antonio crown mark, the number 3 eagle mark, Hecho en Mexico, COOP SCL Los Castillo (in a circle) and SEC2. These cuff links are illustrated on page 155 of the book "SILVER SEDUCTION the art of Mexican Modernist Antonio Pineda". They are in excellent vintage condition. They are approximately seven eighths of an inch by three quarters of an inch.