Iridescent Glass - Footed Vases or Wine Glasses - Maybe Heron Glass?

Happy Christmas to everyone at Collectors Weekly. These were my Christmas present from my Twin. 2 lovely iridescent Glasses, which she had picked up in a charity shop. They are really large, so I'm not sure my first thought of Wine glasses is right, especially as they are slightly different sizes, so maybe they are footed vases. I think they have been made by Heron Glass of Cumbria, as most of the iridescent glass we find around Cumbria is hand made from there. I have a large collection of Heron Glass, but I have never seen this shape before.