Edwardian 18ct Gold & Enamel Horse’s Head Cufflinks

A good pair of 18ct75% pure gold (or 750 parts pure gold and 250 parts other metals) gold cufflinks that were probably made in America circa 1890-1900. They have been enamelled with two grey and two chestnut horse’s heads wearing bridles with a pelham bit. They are very striking and unusual.