That is a Gullaskruf vase designed by Arthur Percy. The larger ones get quite pricey - I saw a 35"one auctioned in Sweden for 2800 SEK = over 300 UKPs. HOWEVER, I have also seen these with an Ingridglas label. Now I'm not sure if Ingrid imported Gullaskruf as well, or if they had them copied elsewhere...
Your Gullaskruf attribution is backed up by J Miller 2006 pp331.
Gullaskruf tall blue floor bottle designed by Arthur Percy c 1960 - 19" high £100 approx.
If this is right then it can only be assumed they imported the 35" vases.
That’s a pic I will be saving for my G Hardy imported goods collection. Getting a G Hardy database together for Sweden and Italy would be an amazing but time consuming project. I actually don't know of any books new or old that deal, comprehensively & exclusively with importers and their glass?
The Ingridglas import label (Germany?) interests me, especially if they did indeed import same goods as Hardy. You mention them in your book, where they a big concern, I mean enough to bother G Hardy or was it association with the florist business you mention (which does make sense – floor vase)?