I think it is an IRENA vase from Poland. The factory apparently only started producing in 1973. I have seen aluminium foil/paper labelled very conventional trumpet vases etc. with such a label. I see no reason why they would not have tried to make non-standard designs and perhaps they still do. More likely, to my mind, is that it did not make money so production ceased after a relatively short time - hence the unusual way of marking and its not being readily recognised.
Ross