The Simont illustration this came from appeared in October 1914.
From eBay; a snowfall of spots was removed with Photoshop and the monocolor tint was removed.
Elisabeth wears a light high-neck under garment under a scoop neck sheer top for a simple, but striking, portrait.
Keywords: Simont, Queen Elisabeth of Belgium, Wittelsbach family, Wettin family, Princess, Queen, bouffant coiffure, bun, chemise, high enclosing neckline, bodice, scoop neckline, long close sleeves