AI identification & appraisal estimate

Paleolithic Biface Chert Hand Axe

Submitted photo of Paleolithic Biface Chert Hand Axe
Photo submitted by the user — not generated by AI

User's notes

Paleolithic chert bi face hand axe lithic scraper found in Guthrie, OK measuring

These notes were written by the person who submitted this item. Appraiser.AI has not verified them, and the AI's identification and estimate may rely on them.

AI Estimated Value

Not an official valuation

$150 - $250

AI estimate as of February 21, 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.

This analysis also relies on unverified notes provided by the user, which may be incomplete or inaccurate and could affect the result.

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AI Item Analysis

This item is a Paleolithic biface hand axe and lithic scraper, found in Guthrie, Oklahoma. It is crafted from a high-quality chert material, characterized by its fine-grained texture and a color palette of tan, beige, and earthy brown tones with subtle mottled ivory inclusions. The artifact displays classic percussion flaking techniques, where large flakes have been removed from both sides (bifacial) to create a tapered, wedge-like profile and sharp edges. The piece measures roughly 4-5 inches in length based on scale, fitting comfortably in the palm of a hand, which suggests it was intended as a handheld multi-tool for chopping or scraping hides. Notable features include a prominent central ridge and visible ripple marks from the flintknapping process. The condition shows heavy mineralization and a well-developed patina consistent with ancient lithic tools, with some evidence of modern edge wear or minor step fractures along the primary working face. The item lacks contemporary manufacturer marks, as is typical for prehistoric tools, but demonstrates significant craftsmanship through the deliberate symmetry of its percussion-sculpted form. This specimen is an excellent example of early human technology and tool development in the North American plains.

AI Appraisal Report

Based on my examination of the Paleolithic biface hand axe, the artifact exhibits characteristics consistent with archaic lithic technology found in North America. The chert material displays a mature patina and mineralization, suggesting significant age. The percussion flaking is deliberate, showing a clear bulb of percussion and ripple marks that indicate skilled flintknapping. In the current market for prehistoric lithics, specimens without firm stratigraphic provenance or established 'named' point typology (such as Clovis or Folsom) generally sell within this moderate range. While the craftsmanship is excellent, the lack of rare material or associated site documentation limits the top-end value. Factors positively impacting the value include the aesthetically pleasing mottled coloration and the tool's functional versatility as both a hand axe and scraper. However, minor step fractures and modern edge wear slightly detract from its collector appeal. Please note that an appraisal from images alone is preliminary. To provide a definitive authentication, I would require a physical examination to verify the microscopic wear patterns and ensure the patina is not chemically induced. Furthermore, documented history of the 'Guthrie, OK' find location, such as field notes or a chain of custody, would be necessary to elevate this piece to a high-end investment grade. Comparing this to recent sales of undocumented Midwestern bifaces, the $150-$250 range reflects current collector demand for high-quality, handheld surface finds.

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