More to explore:
beautiful! I know its not Claire wearing it, but this is what I see.
Dinner Dress, circa 1880
Dress, circa 1870.
French Silk Dress circa 1750
"Sea green silk dress, French, circa 1880."
British silk gown, circa 1780
c. 1748 Tirelli Costumi
House of Worth (French, circa 1890s)
Fortuny 'delphos' gown, circa 1930s