A pearl and portrait miniature mourning pendant brooch, mid 19th century, of rectangular outline,

A pearl and portrait miniature mourning pendant brooch, mid 19th century, of rectangular outline, centring on a glazed compartment containing a painted portrait of a bearded man, within an outer border of half pearls, to a similar bail, the reverse with a glazed compartment containing hair work, mounted in gold, length 4.5cm, pearls untested