This well-made controlled bubble ashtray has me stumped for a maker. The shape, the weight, and the qaulity of the bubbles, make me think it COULD be Whitefriars.
On the other hand I have never seen wWhitefriars cased in lovely aqua blue glass - so that brings to mind Scandinavian.
Finally the flat base and the ribbing are similar to bits I have that I am sure are Murano.
HELP.
Ross