Vase, sculpture, art? To me, this tall Troika vase qualifies as all three.
And the nice thing about having a vase that's square like this one, is that – depending which face you choose to display – it's a bit like having four different vases in one.
This carved and wonderfully textured vase in warm earthy colours is by Troika Pottery. The design is by Tina Doubleday who was at Troika between 1977 and 1979.
There's a lot more information on Troika pottery, including a useful list of designers marks, here: Troika Pottery