Thank you so much for your comments, highly appreciated!

And I had thought this one
has to be Bohemian around 1900...
I should stick to the collectiong areas I know a little bit about; but at a prize of 70 cents it had to come home with me.
I looked at it more closer, and I
think the piece is purple cased in colourless glass, with the threading being colourless as well, then the whole surface iridized. But quite hard to discern (the colour fades towards the base)
Michael