An extremely fine 15 Carat Yellow Gold (marked) Butterfly Brooch.
The central section outlining the insects shape and highlighted with three graduating small Old Cut Diamonds and two Rose Cut Diamonds, with two Emeralds for the Butterfly eyes. The Gold & Crystal wings over setting two Butterfly wings. The reverse engraved with “Dans Tous Les Pays” (In all the countries).
With a hinged pin fastener and a safety chain.
(Date mark worn but plausibly 1918 or 1919).