I think it's either French or Belgian, very flowy lines, and stylistically, it sort of shouts 50s-60s to me. But I could be wrong about any of that.
Quite big, 30 cm high, 10 cm across at the base, about 14.5 at the top. It's not entirely round, it goes a bit towards having 3 'corners'.
I've trouble finding anything similar. If it is French and/or Belgian, that period is not very well documented. I just hope someone sees some style similarities and can point me in the right direction.
Astrid