Preliminary identification

Late Edo Period Ko-Imari Blue and White Hexagonal Charger

Photo reference

5 uploaded photos

Overview

An impressive 40.5 cm hexagonal porcelain charger featuring rich underglaze cobalt blue (sometsuke) decoration. The surface is densely painted with scrolling floral arabesques (karakusa) and birds nestled among lush peony blossoms within a barbed lobed rim. The reverse displays auspicious motifs, stylized butterflies, and a traditional two-character kiln mark within the unglazed foot ring.

Story

Crafted in the famed kilns of Arita during the late Edo period, this massive platter reflects the pinnacle of Japanese domestic blue-and-white porcelain. At over 40 centimeters across, forming and firing such a large hexagonal vessel without warping was a monumental technical achievement. It was designed to serve as a dramatic centerpiece for grand banquets in wealthy merchant or samurai households.

Maker / Origin

Produced by master artisans in the Arita porcelain region of Hizen province. During the late Edo period, local potteries refined cobalt painting techniques, developing intense, saturated shades of blue known as 'gousu' alongside intricate freehand brushwork.

Condition & Value

Appears in good antique condition overall with strong glaze luster and crisp cobalt tones. Typical age-related wear present on the foot rim, along with minor glaze anomalies from original kiln firing. Excellent presentation quality.

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Market Analysis

Comparable demand stays strongest where maker, originality, and venue confidence line up. Broader examples still trade, but the range tightens quickly when provenance, condition, or selling lane fit is missing.

Value Drivers

  • Strong maker attribution with credible period details
  • Better-than-average condition for the category
  • Broader demand rises when presentation and finish feel intact

Concerns

  • Decorative-only demand limits the ceiling
  • Surface wear or missing provenance can compress the range fast
  • Regional sale lanes often underperform specialist venues

Best Venue

Specialty auction or a focused dealer with buyers already in this lane.

Comparable Sales

5 comps
Regional auction· Jun 2024
$1,280

Signed example with light edge wear and original frame.

Dealer archive· Mar 2024
$1,450

Comparable format with stronger provenance and cleaner surface.

Marketplace sale· Jan 2024
$980

Smaller related piece with visible craquelure and trimmed margins.

Estate platform· Oct 2023
$1,150

Period match with softer condition and weaker subject matter.

Auction result· Aug 2023
$1,375

Close market lane comp with similar material and presentation.