Can anyone help with the make and origin of this vase? I bought it in 1964 in a shop in Dorset, England, can't remember how much I paid but it was alot of money at the time. I was told it was Swedish and unusual because of the square base and circular flute. It's 50cm tall and doesn't have any ID markings on it. It appears to have a middle core of white glass between two layers of the coral red glass.