AI identification & appraisal estimate

Vintage Quaker State Promotional Pocket Knife

Submitted photo of Vintage Quaker State Promotional Pocket Knife
Photo submitted by the user — not generated by AI

AI Estimated Value

Not an official valuation

$5 - $15 USD

AI estimate as of December 23, 2025 · 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 vintage promotional multi-tool pocket knife featuring the Quaker State motor oil branding. The knife is approximately 2.25 to 2.5 inches in length when closed, making it a compact keychain or pocket-sized accessory. The handle scales are constructed from a vibrant green molded plastic, consistent with the corporate colors of the Quaker State brand. The 'Quaker State' logo is printed in a bold, white sans-serif typeface horizontally across the main scale. The construction includes metal liners, spacers, and small pins that hold the scales in place. Visible tools include at least one folding blade and likely a nail file or smaller secondary blade on the opposite side, suggesting a standard two-blade configuration. The condition of the item shows moderate wear consistent with age and use; the plastic scales exhibit surface scuffing, minor scratches, and slight fading of the white lettering, particularly near the edges. A small metal loop or hole at the end suggests it was designed to be attached to a keyring. Similar items were commonly produced as promotional giveaways or corporate swag from the mid-20th century through the 1980s. The craftsmanship is utilitarian, typical for mass-produced advertising novelties of that era.

AI Appraisal Report

Based on my visual examination of the provided images, this is a vintage promotional pocket knife featuring the Quaker State motor oil branding. The item appears to be an authentic piece of mid-to-late 20th-century advertising memorabilia, likely produced between the 1960s and 1980s as a customer giveaway. The utilitarian craftsmanship—featuring injection-molded plastic scales and stamped metal liners—is consistent with mass-produced promotional swag of that era. The condition is best described as 'good, used.' I observed moderate surface wear on the green plastic scales, including expected scuffing and minor scratches typical of a keychain item. The white 'Quaker State' typography shows signs of fading and handling wear but remains legible. While I cannot physically test the blade snap or check for rust within the pivot mechanism from the photos, the visible metal components appear intact without significant corrosion. From a market perspective, these items are relatively common. Quaker State was a prolific advertiser, and thousands of these units were distributed. Consequently, rarity is low. The value is driven primarily by collectors of 'petroliana' (gas and oil collectibles) or knife enthusiasts looking for specific brand novelties. Comparable sales for similar plastic-handled advertising knives generally fall in the single digits, occasionally reaching higher if the condition is pristine or if it is part of a larger set. Please note that this appraisal is based solely on digital imagery. An in-person inspection would be required to verify the maker's mark on the blade tang (often brands like Colonial or Imperial), the mechanical action of the blades, and the full extent of any oxidation. Without these physical checks, this valuation assumes the mechanical function is sound.

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