I have a number of wine glasses but nothing like this one. This particular piece has and unusual shape. They are 12 relatively flat sides, which creates a mirror affect. The vase measures 22.5cm high, 8.5cm dia. at the top and 12.5cm dia. at widest point. The stem is twisted with 6 sections. The stem is approx. 10cm in height. The base dia. 8.7cm. The base is polished and uneven around the centre. Can anyone identify this please. Kind Regards