Blue swirl glass vase

Ovoid glass vase with soft swirls of cobalt blue and milky white drifting through clear glass, like clouds or watercolour. Subtle vertical panels in the body and a rolled rim. The blue really comes alive in daylight, casting a pale blue shadow. Beautiful with a loose bunch of flowers or on its own on a windowsill. Heavy quality, found in Italy. 
Unmarked. Pre-loved, good vintage condition.