Blue underglaze maker's mark or monogram
Estimated Value
$0-$50 as a standalone mark image; value depends entirely on the full object, maker, and condition
The image shows a small cobalt-blue painted mark on a white glazed ceramic surface. The mark appears to be a stylized monogram, crossed initials, or factory symbol rather than a full signature. The lines are hand-applied and slightly soft-edged, consistent with underglaze decoration on porcelain or fine earthenware. Because only the mark is visible, the exact object type cannot be determined, though it may be the underside of a plate, cup, saucer, or decorative ceramic piece.
Era
Unknown; likely 19th to 20th century based on style of mark and glaze appearance
Origin
Unknown; possibly European or East Asian porcelain/ceramic manufacture
Material
Glazed porcelain or fine ceramic with cobalt blue underglaze mark
Condition
Fair; the visible surface shows a small brown stain or firing spot and the mark is slightly blurred, but no major cracks or chips are visible in this image
Physical Details
Dimensions
Not determinable from the image; visible mark appears to be small, likely under 1 inch across
Weight
Light
Authentication
Authenticity Score
Low; the image shows only a partial, indistinct mark without the full object, making identification and authentication impossible with confidence
Provenance
Unknown. The mark may indicate a manufacturer, decorator, or painter's mark, but there is insufficient detail to attribute it confidently to a specific factory or region.
Historical Significance
Underglaze blue marks are commonly used on porcelain and ceramics to identify makers, patterns, or decorators. If matched to a known factory mark, it could help date and attribute the piece, but the mark alone is not sufficient for historical significance assessment.
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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