Blue and white porcelain plate with Chinese-style seal mark

Blue and white porcelain plate with Chinese-style seal mark

Ceramics
Uncommon
Identified on September 27, 2026

Estimated Value

$30-$150

A round white porcelain plate or charger decorated with a cobalt blue floral and scroll border around the rim. The underside shows a square blue seal-style mark in the center, suggesting a Chinese-inspired maker's mark or reign-style mark. The glaze appears glossy and the foot rim shows some toning and dirt accumulation consistent with age or use. The decoration is crisp but the exact workshop, dynasty, or factory cannot be confirmed from this single image. The style is consistent with Chinese blue-and-white porcelain, though it may be a later decorative piece rather than an antique imperial example.

Era

Likely 20th century, possibly mid-20th century; exact period unknown

Origin

China or Chinese export market; possibly a later reproduction made in China

Material

Porcelain with cobalt blue underglaze decoration

Condition

Good overall condition with visible age-related wear, light staining/discoloration to the foot rim, and minor surface wear; no obvious cracks or major chips visible from this view

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Physical Details

Dimensions

Approximately 10 to 12 inches in diameter

Weight

Medium

Authentication

Authenticity Score

Medium-Low; the piece appears genuinely porcelain and hand-decorated, but the mark and style are not sufficient to confirm age, dynasty, or whether it is an antique versus a later reproduction

Provenance

Likely Chinese manufacture; the seal mark suggests either a Chinese factory/workshop or a piece made for export/collector market. Exact provenance cannot be determined from the image alone.

Historical Significance

Blue-and-white porcelain is one of the most historically important traditions in Chinese ceramics, widely collected and reproduced. If authentic older Chinese porcelain, it could be significant; however, based on the visible mark and finish, this example is more likely a decorative later piece than a rare antique.

This identification and value range are AI-generated research aids, not authentication, certification, or a formal appraisal. Learn about the limitations and when to consult a qualified professional appraiser.

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