AI identification & appraisal estimate

United States 15-cent Special Delivery Stamp (not authenticated)

Submitted photo of United States 15-cent Special Delivery Stamp (not authenticated)
Photo submitted by the user — not generated by AI

AI Estimated Value

Not an official valuation

$10-$30

AI estimate as of November 5, 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

This rectangular postage stamp is printed in a bright orange colorway on off-white paper with perforated edges on all four sides. The central vignette depicts a motorcycle with a sidecar parked in front of a building, accompanied by a delivery figure, reflecting early 20th-century mail transportation themes. The denomination '15' appears prominently in ornate circular frames in the upper left and lower right corners, while the surrounding text reads 'SPECIAL DELIVERY' vertically on the right and 'FIFTEEN CENTS' along the bottom edge, with 'UNITED STATES POSTAGE' visible along the right margin. A heavy black ink cancellation mark reading 'MASS' is stamped across the lower right portion of the stamp. The item shows visible signs of age including slight toning and minor edge wear on the perforations. The visual design and text elements are consistent with a 1931 United States postal issue, though the piece has not been professionally authenticated. The attribution in the name rests on the visible denominational markings, text elements, and iconic imagery associated with this specific historical series of stamps.

AI Appraisal Report

Based on what I can see in the provided image, this item exhibits visual characteristics consistent with a 1931 United States 15-cent Special Delivery stamp, featuring the iconic motorcycle and sidecar design printed in bright orange with a heavy black cancellation mark reading 'MASS'. I cannot verify from a photo whether the paper stock, watermark, and gum are correct, nor can I determine if the item has been chemically altered, repaired, or is a modern reproduction or counterfeit. Physical inspection and expert philatelic evaluation would be needed to confirm authenticity and condition. The visible signs of age, including slight toning and minor edge wear on the perforations, detract from the potential grade. Assuming the working hypothesis that the stamp is as it appears, hinged or canceled copies of this specific issue typically trade in the low retail range due to high surviving print numbers. Demand for classic U.S. postal issues remains steady among general collectors, but values fluctuate significantly based on centering, cancellation quality, and overall preservation. If the piece were to turn out to be a reproduction, modern replica, or forgery, its value would drop to nominal or zero. The estimated value range reflects the assumed identification in its current unauthenticated and moderately worn condition.

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