vintage Napco Japan ceramic planter pot or vase, traditional Japanese pottery shape

I love the rustic natural earth colors of this vintage pottery vase or planter pot, and the unusual footed shape. It's unmarked, though we've tracked it down and it's a 20th century Napco Ware piece, made in Japan.

It measures about 4 1/4" x 4 1/4" overall. The exterior looks excellent, though there's some white mineral deposits to the interior.