A Victorian blue enamel and gold memorial locket and chain

A Victorian blue enamel and gold memorial locket and chain, the circular locket surmounted with a diamond-set forget-me-not in silver and gold, hinged opening to reveal a glazed locket compartment containing hair and an inscription 'The Hair of His Grace The Duke of Wellington July 1847', 3cm high, on blue enamel lozenge and spherical-link chain with gold spherical links set with rose-cut diamonds, 56cm long