This vintage studio pottery planter, probably made in Japan during the Mid-Century period, features an asymmetrical triangular form raised on three tapered feet. Crafted in stoneware, it combines a textured lava-like exterior with a softly glazed celadon interior and moulded geometric relief decoration. The base bears an impressed model number, a small workshop seal, and handwritten production marks, all consistent with Japanese studio or export pottery of the period. The sculptural form reflects the organic simplicity and geometric restraint associated with Mid-Century Japanese design. A band of moulded diamond motifs encircles the exterior, contrasting with the volcanic texture of the clay body and the smooth celadon glaze within. The substantial wall thickness and carefully proportioned feet give the vessel a strong architectural presence while remaining fully functional. Likely intended as an ikebana vessel, bonsai planter, or decorative container, this piece also complements Brutalist, Organic Modern, Wabi-Sabi, and Japanese Modern interiors. While the workshop remains unidentified, the quality of craftsmanship, distinctive asymmetrical design, and traditional marking style make it an appealing example of Mid-Century Japanese studio pottery. Measurements: 4.125" H x 8.25" W x 8.5" L Weight: 4.2 lb Origin: Japan Age: Mid-Century