Hi. Hope someone can help. I found this distinctive glass vase in North Yorkshire - as usual no signature or label, and despite much searching have not come up with any information (date, maker, etc) so am hoping someone might be able to id it. Blue cased it looks hand worked and shaped with a distinctive hole through the object and a ground out polished pontil. Measures 16.5 cm x 6 cm x 6 cm (H x W x D) and weighs 950 gm. Any help much appreciated