AI identification & appraisal estimate

Mason's Patent Ironstone Ceramic Plate (not authenticated)

Submitted photo of Mason's Patent Ironstone Ceramic Plate (not authenticated)
Photo submitted by the user — not generated by AI

AI Estimated Value

Not an official valuation

$75-125

AI estimate as of October 15, 2026 · verify with a professional before acting

AI-Generated · Verify before acting

Everything on this page is generated by AI for informational purposes only. AI can make mistakes — the AI may misidentify items or misattribute them (artist, maker, brand, designer, origin, era). This is not an official valuation and should not be used for insurance, sale, tax, estate, legal, or lending purposes — or any decision requiring a certified appraisal. It is not an authoritative claim about any person, brand, or rights holder — do not share or rely on it as a factual statement about a third party. Always consult qualified professionals before making financial decisions.

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AI Item Analysis

The provided image displays the underside of a ceramic or ironstone dish featuring a detailed green underglaze transfer print maker's mark and pattern description. At the top of the mark, the text reads 'MASON'S' in a curving, stylized font above a crown emblem containing cross motifs and intricate detailing. Below the crown is a banner reading 'PATENT IRONSTONE', followed by the origin text 'MADE IN ENGLAND'. Further down, the pattern is specified with the text 'Mason's Game Birds' and 'The Lapwing' written in a flowing cursive script. Additional lowercase and capital lettering at the bottom states 'PERMANENT DETERGENT PROOF DECORATION' alongside the number '77'. The ceramic body exhibits a visible network of fine surface crazing across the off-white or cream-colored glaze, which is consistent with age and typical of historic earthenware or ironstone pieces. There are minor dark speckles and light discoloration spots nearby, indicating standard vintage wear. The identification of the maker rests entirely upon the printed mark visible in the photograph, though its physical age and authenticity remain unverified through direct physical inspection.

AI Appraisal Report

Based on the provided image, I can observe the underside of a ceramic dish bearing a green underglaze transfer print mark that reads 'MASON'S PATENT IRONSTONE' alongside 'The Lapwing' pattern text and a visible network of fine surface crazing. What I cannot determine from a photograph alone is the physical composition, age, or whether the mark is a reproduction or a period piece. Physical inspection is needed to evaluate the glaze depth, weight, and any potential factory flaws. Assuming the attribution to Mason's is correct, comparable decorative ironstone transferware plates featuring game bird series typically trade in the $75 to $125 range within current secondary markets, driven by collectors of 19th and 20th-century English earthenware. However, if the item turns out to be a modern replica, decorative copy, or produced 'in the style of' rather than a traditional factory product, the market value would drop significantly to around $15 to $30 as a mere decorative object. To establish a higher level of certainty regarding its age and manufacture, one would need an in-person physical examination by a ceramic specialist, verification of the transfer print characteristics against known archival records, and expert appraisal.

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