Riedel Vinum Port Glass - Set of 2Riedel Vinum Port Glass During a series of tastings conducted in London and Austria, some of the world's greatest port experts selected this glass as the ideal shape. The glass combines all the positive characteristics established by research, emphasising harmony and concentration of fruit. Vinum is RIEDEL's basic varietal specific stemmed series. Designed in 1986 by 10th generation glassmaker Georg J. Riedel, Vinum was created to ensure every wine