Posy Vases With Uranium Glass Bows/Ribbons

I was surprised to find the green glass bows on these contain Uranium as the colour is mint/teal green which is unusual. I have seen one other vase with the bow in blue glass but with no attribution, so at the moment they are a mystery but may be English or Czech. I think they are mould blown, then hand finished and have ground pontils and date to the early 20th. century, 6cm. tall