AI Appraisal Estimate

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Submitted photo · June 10, 2026

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AI appraisal

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Everything below 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 Identification

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Dodge Brothers Automotive Sales & Service Porcelain Enamel Sign

Automobilia and Vintage Advertising

AI Estimated Value

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$1,200 - $1,800 USD

As of June 10, 2026

AI Item Analysis

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This is a circular advertising sign for Dodge Brothers, featuring the company's early and historically significant six-pointed star emblem. The sign is constructed of porcelain enamel over a heavy-gauge metal substrate, a technique common for durable outdoor advertising in the early to mid-20th century. The emblem showcases an interlocking 'DB' at the center of two triangles forming a star, set against a light blue background depicting a stylized world map. The outer ring is a deep navy blue with the white text 'DODGE BROTHERS' at the top and '- SALES - SERVICE -' at the bottom. The color palette consists of white, dark navy blue, and a pale sky blue. In terms of condition, the sign appears to be in fair to good vintage condition. There is clear evidence of age-related wear, including minor porcelain chipping and surface scratching, particularly around the mounting holes. There are no visible major dents or large-scale enamel loss, suggesting it was well-maintained or protected. This particular logo design was utilized by the Dodge brothers, John and Horace, from 1914 until the late 1920s/early 1930s following the Chrysler takeover, dating this piece as a likely mid-century reproduction or a well-preserved original from the pre-war era. The craftsmanship is high, with sharp lettering and clean color separation characteristic of quality vitrified enamel work.

AI Appraisal Report

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Upon visual examination of this Dodge Brothers porcelain sign, I find it to be a compelling example of early automotive advertising, likely dating to the 1920s era prior to the Chrysler acquisition. The sign features the distinctive and historically significant 'Star of David' motif with the interlocking 'DB' and map background. The vitreous enamel surface displays characteristic shelving where the different colors were fired, a key indicator of authentic period production rather than a modern silkscreen reproduction. The condition is respectable for a sign of this vintage; the heavy chipping around the mounting grommets is expected and consistent with authentic removal and hanging stress. The field remains relatively clean, though there is evidence of surface dulling and minor oxidation. However, extreme caution is warranted regarding authenticity. The market is currently flooded with high-quality Eastern European reproductions and 'fantasy' pieces that artificially age signs using acid baths to mimic the wear seen here. While the grommets and edge wear look promising, I cannot definitively confirm the sign's age without a physical inspection. Specifically, I would need to examine the back for the correct distinct shelving of the enamel layers and potentially test the metal gauge. Provenance is notably absent here, which impacts the valuation ceiling. Assuming this is a genuine 1920s single-sided porcelain (SSP) sign, its value falls in the $1,200-$1,800 range. If confirmed as a double-sided dealership hanger, the value would be significantly higher. Recent auctions for similar confirmed originals have hammered between $1,500 and $2,500 depending on gloss retention.

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