Probably Dutch or German
Roemer, ca. 1630–60
A roemer is a form of drinking vessel used primarily for white wine. Popular in Germany and the Netherlands for many centuries, the form reached its zenith in the 17th century. Roemers derived from the medieval northern European waldglas or forest glass tradition, where impurities in the sand frequently imparted the glass with a green tint. By the 17th century, a color preference had formed so that roemers were intentionally made with a green glass, which was thought to look well with the white wine served in them. The ornamental raspberry prunts on the stem served the practical function of helping the drinker to better grasp the glass.