Hi Della - ref. the photo of the two blue vases you have posted above. IMHO I do not think they are Whitefriars.
1) Don't know how tall yours are, but the average weight of my 6" bark vases (and I have just a few) is 750gm.
2) Colour - I know photos can distort the exact colour - but these do not look like a W/F Kingfisher blue to me, and neither are they the rare Sky Blue, which in any event are FLC (NO CLEAR CASING.)
3) Again, unless the angle of the photo is a bit off, they look disproportionally tall for their width/diameter.
Just my opinion.
However, if you didn't break the bank and you like them that's great. Although I am a W/.F freak, I also just like interesting textured glass of any make, and buy that too.
PS Does ~Ingrid glas ring any bells? Not sure if this has been mentioned, so sorry if I am repeating stuff.