I think this piece might be German. Several German makers produced patterns like this somewhere between the 60's and 80's. If the quality of the finishing isn't great, I would tend to think of smaller Scandinavian or German makers. Walther for instance could have made that. Unfortunately, ID'ing German glass is difficult, as resources are far and few.
PS I've attached a few German Peill vases to show the style similarities from German glass from that period, though yours is most likely not by Peill.