Blown jugs (of any sort) are hard to ID but I would say yours is much more likely Continental Europe than Webb. Most of the blow-moulded uranium jugs I come across have a moulded base, i.e., no pontil mark, but I too have recently have found a jug with blown horizontal ribs,vertical optical ribs and a polished pontil. Today, I found a cruet with similar features, but not I suspect, from the shade of green, made at the same factory.
Your jug is lovely but not from one of the high quality English makers. I know it's hand made but I suspect it was still from perhaps a Czechoslovakian factory turning out large numbers of glassware items for export in the 1930s/40s. A pontil mark is only indicative of the way something was made, not where it was made; a polished pontil mark shows the factory cared about decent finishing.
Here are a couple of quick snaps (these are 3-4 MB pix resized)
(See the difference in the glow compared to your vases?)