An Art Nouveau plique-a-jour enamel and ruby hatpin by Heinrich Levinger With stamped maker's monogram, 'Depose' and '900'.

With stamped maker's monogram, 'Depose' and '900'.
the pierced triform terminal set to the centre with a ruby flanked by leaves and flowers in shades of green and pink plique-a-jour enamel, with red stone highlights, 15cm long.