AI identification & appraisal estimate

Sylvester the Cat promotional drinking glass (unauthenticated)

Submitted photo of Sylvester the Cat promotional drinking glass (unauthenticated)
Photo submitted by the user — not generated by AI

AI Estimated Value

Not an official valuation

$15-30

AI estimate as of August 8, 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 is a clear, molded glass tumbler featuring a colorful screen-printed graphic of the classic Warner Bros. cartoon character Sylvester the Cat. The cylindrical glass tapers slightly toward the flat, weighted base, a common construction for vintage promotional glassware. The graphic depicts Sylvester in two overlapping poses, showcasing his signature black and white fur, distinctive red nose, and expressive posture with raised paws. The name "SYLVESTER" is printed in bold uppercase letters near the bottom base of the glass, serving as a clear character identifier rather than a manufacturer's mark. The glass is transparent and appears to be made of standard machine-molded soda-lime glass. There are no obvious chips, cracks, or structural damages visible in the photograph, though slight fading or wear on the applied enamel screen print could be present upon closer inspection. Such collectible glassware pieces are often associated with fast-food promotional campaigns, gas station giveaways, or retail merchandise from the mid-to-late 20th century, typically produced under license from Warner Bros. The identification rests entirely on the visual character depiction and the printed name, without any visible maker's mark or copyright stamp discernable in this specific view. This item remains unverified regarding its exact manufacturer, production year, or promotional origin.

AI Appraisal Report

Based on what I can see in the photograph, this clear molded glass tumbler features a screen-printed graphic of Sylvester the Cat and a bold 'SYLVESTER' lettering label, which suggests an association with mid-to-late 20th-century Warner Bros. promotional glassware campaigns. However, I can't verify from a photo alone the exact manufacturer, production year, or whether this piece is an official promotional item rather than a later licensed retail replica or reproduction. I would need physical inspection to confirm the glass composition, the permanence of the applied enamel, and the presence of any subtle maker's marks or copyright stamps that may be obscured in this view. Assuming the attribution to a vintage promotional tumbler is correct, comparable items of this type generally trade in the $15 to $30 range, driven by nostalgic demand among cartoon and promotional glassware collectors. The valuation is heavily dependent on condition; any significant fading, scratching, or enamel loss on the screen print would reduce the value toward the lower end of the range. Furthermore, if physical inspection reveals this piece to be a modern reproduction, copy, or unauthorized replica rather than a period piece, the value would likely drop to nominal novelty worth of under $10. To confirm authenticity and establish a more precise valuation, an in-person examination by an expert specializing in vintage promotional merchandise and glassware is necessary.

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