Hi, I was told this was Whitefriars but can't find it in my books.
This is a Whitefriars(?) amethyst glass optically ribbed vase blown sometime in the 1970s. The vase is in excellent condition. It shows age related wear and tear to the rim of the base consistent with use. The base carries a very neat polished out pontil mark. The vase is a waisted cylinder in shape and measures 9 cm (3.6 inches) in diameter across rim. The vase is blown in amethyst glass with vertical optical ribbing from base to rim. The vase is 13.8 cm (5.5 inches) in height. There are no chips, cracks, other significant scratches or any obvious evidence of restoration. It weighs in at 235 g. (~ 8 oz.).