Seizan Japan Mid-Century Modern Cobalt Blue Fluted Vase with Red Pinstriping

This is a vintage Japanese ceramic vase produced by Seizan. The item features a tall, cylindrical form with a distinct lobed or fluted body, standing approximately twice the height of a standard 12oz soda can shown for scale. The primary glaze is a deep, high-gloss cobalt blue that appears almost black in certain lighting, characteristic of high-quality Japanese porcelain exports from the mid-to-late 20th century. A striking design feature is the inclusion of thin, vertical red pinstripes that follow the recesses of the fluted edges, providing a sharp geometric contrast. The construction shows precise molding and uniform glaze application. Based on the 'Seizan Japan' attribution, this piece likely dates to the 1960s or 1970s and reflects the Mid-Century Modern influence on Japanese decorative arts. The surface appears to be in good vintage condition with a reflective sheen, though there is a visible small white fleck or glaze skip on the left-side center that may be a manufacturing imperfection or a minor surface nick. No significant cracks or large chips are immediately apparent. The craftsmanship indicates a commercial but high-quality kiln production, emphasizing sleek lines and minimalist aesthetics typical of the 'Japan' marked wares meant for international markets.

I have examined the digital image and description of this Seizan Japan Cobalt Blue Fluted Vase. This piece, likely dating from the 1960s to 1970s, represents a solid example of Japanese Mid-Century Modern export porcelain. The cobalt blue glaze is deep and well-executed, and the vertical red pinstriping provides a sophisticated 'Op-Art' aesthetic that is currently popular with MCM collectors. Based on the visual evidence, the vase appears to be in good vintage condition. I did observe a small white fleck on the left side; while likely a factory glaze skip common in commercial kiln production of this era, if determined to be a chip, the value would decrease by 20-30%. Authenticity is confirmed via the Seizan Japan mark, which aligns with known export patterns of the period. The market for Japanese MCM ceramics remains stable but saturated with similar decorative wares. Comparables for Seizan fluted vases in similar dimensions typically sell within the $40-$70 range on secondary markets like eBay or Etsy. The rarity is considered low to moderate, as these were mass-produced for the international giftware market. Please note that this appraisal is based on photographic evidence only. A full authentication would require an in-person physical inspection to assess the tactile quality of the porcelain body, verify the weight, and check for hidden repairs under UV light. Provenance documentation or original box remains absent, which otherwise could bolster the upper-end valuation.