A rare English enamel patch box early 19th century

A rare English enamel patch box early 19th century, decorated with a portrait of George IV during his time as Prince of Wales, titled Prince Regent in black above, the sides enamelled in a lavender blue, the interior cover fitted with a mirror, some good restoration, 4.3cm.

The portrait is taken from a print by William Skelton, after a portrait by Thomas Phillips.