Back in the day, Otagiri, Japan made some pretty good pieces, like this one I think, which I first took as a two piece studio pottery vessel (it is in fact all one piece) and which has a sort of a mid-century scandanavian feel to me. Nice weight, good earthy feel, with a deeply ribbed body that caused the pretty marbling of the drippy glazing. Perfect for one stem---and I think would be the exact right vase for one small flowering branch or, even better, a sprig of hellebore.
5 1/4" t x 3 1/4" in diameter and in great condition.