Unidentified maker's mark / impressed pottery or porcelain stamp

Unidentified maker's mark / impressed pottery or porcelain stamp

Ceramics
Uncommon
Identified on October 14, 2026

Estimated Value

$0-$50 as a standalone marked fragment or unidentified piece; potentially higher if matched to a desirable maker or complete object

This image shows a close-up of an impressed or molded mark on a light-colored ceramic or porcelain surface. The symbol appears geometric, resembling a stylized keyhole, vase, or monogram-like device with a central circular element and vertical line. The mark is not clearly identifiable from the image alone and may represent a manufacturer’s logo, mold mark, or decorative stamp rather than a full signature. The surrounding surface appears glazed and somewhat aged, with minor spotting and yellowing consistent with use or storage over time.

Era

Late 19th century to early 20th century (estimated)

Origin

Unknown; possibly European or American ceramic manufacturer

Material

Glazed ceramic or porcelain

Condition

Fair; the mark is visible but the surface shows staining, age-related discoloration, and wear. No obvious cracks or chips are visible in this close-up, but the image is limited.

Share this identification:

Physical Details

Dimensions

Not determinable from the close-up; likely part of a larger ceramic object such as a vessel, tile, or sanitary fixture

Weight

Unknown

Authentication

Authenticity Score

Low; the mark appears genuine as an impressed ceramic mark, but the maker and object type cannot be confirmed from this image alone

Provenance

Unknown. The mark may belong to a pottery, porcelain, or sanitary ware manufacturer, but there is insufficient detail to attribute it confidently.

Historical Significance

Impressed maker’s marks on ceramics can be important for identifying production period, factory origin, and object type. However, without a clearer view of the full item or additional marks, this example has limited historical interpretive value on its own.

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.

Browse all →

Have Your Own Antiques Identified

Use our AI-powered antique identifier to discover the history, value, and authenticity of your vintage items in seconds.