Redware Square Pottery Planter

Vintage Redware Square Planter. There is no manufacturing information on it. Probably made in Japan in the 1950’s/1960’s. There is a chip on the inner edge of the upper opening. There is a kind of iridescent sheen on the lower edge all the way around & bottom. It may be mineral salts from watering. There is no drain hole. Photos are a part of the condition. Would make a nice succulent planter. Measures approximately: Height 2.5 Width 4.5 VC301 Redware Square Pottery Planter