Mould blown could be possible. You're the expert !

I have tested them with a very small blacklight (from a loupe),
and I don't believe it's uranium glass.
By the way I'm still very happy with these vases.
I've had a very beautiful green opaline box in the past, that would fit these perfectly.
Unfortunately I had to sell it a while ago.
+ I payed €40,00 for these, including shipment (within the Netherlands).
So I think I did well.
I was just shook when I followed the track&trace code, saw it was delivered a couple of houses further on my block.
Then I went there to pick them up.. Somebody else has picked them up earlier that day!!

Turned out the shipper filled in the wrong house number
