I bought this wine glass in the early 80's from a dealer who said it was brought to the US by a soldier stationed in Germany. She didn't know when the soldier returned to the US. I bought it because the style of the glass - particularly the stem - is similar to glassware designed by Otto Prutscher in Vienna, Austria. It is 8" (approx. 20cm) tall. Is anyone familiar with a manufacturer who produced a line of stemware in the style of Prutscher? Can anyone offer a date or attribution for this glass?