Here is another glass that has me stumped it looks like a bohemian piece of glass but sounds English , i'm not sure if it's a beaker or a vase and measures in inches, the base is concave and looks machine polished with hundreds of straight lines in it's reflection, it's 6 1/4 inches in height 3 1/2 inches across the rim and 3 inches across the base any help would be welcome, age etc, thanks Chris.