AI Appraisal Estimate

AI-generated estimates · not official valuations

From the user

What was submitted

Photo and notes provided by the user — not generated by AI

Submitted item photo
Submitted photo · May 22, 2026

User's notes

Paleo Indian chert bi face hand axe drill perforator tool found in Guthrie OK

AI analysis below

AI appraisal

AI analysis & estimate

AI-Generated · Verify before acting

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.

Note

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

Read the full disclaimer

AI Identification

·Not independently authenticated·Verify before acting

Paleo-Indian Chert Biface Lithic Tool

Prehistoric Native American Artifacts

AI Estimated Value

·Not an official valuation·Verify before acting

$450 - $700

As of May 22, 2026

AI Item Analysis

·AI can make mistakes·Verify before acting
This is a hand-sized lithic tool discovered in Guthrie, Oklahoma, exhibiting characteristics consistent with Paleo-Indian bifacial technology. The item is crafted from a light-colored chert or flint, showing a creamy beige to grayish-white color palette with a matte, slightly waxy luster indicative of high silica content. The construction features pronounced bifacial reduction, where material has been flaked from both sides to create a functional edge. The piece displays several prominent percussion bulbs and negative flake scars, suggesting primary and secondary reduction stages. Notably, the specimen features a tapered, protruding section that may have served as a perforator or drill bit, while the broader body could have functioned as a scrapers or hand axe. Regarding condition, there is significant surface patination consistent with long-term environmental exposure. The edges show signs of use-wear and step-fracturing, likely from prehistoric utilization rather than modern damage. There are no modern maker's marks, as this is a prehistoric artifact. The scale and ergonomic shape suggest it was designed to be held directly in the hand (unhafted) or was perhaps a preform intended for further refinement. The craftsmanship reflects typical knapping techniques of early nomadic Indigenous cultures in the Great Plains region.

AI Appraisal Report

·AI can make mistakes·Verify before acting
Upon visual analysis of this lithic specimen from Guthrie, Oklahoma, I find it to be a high-quality example of a Paleo-Indian multi-tool. The bifacial reduction exhibits classic percussion techniques, and the presence of a specialized protrusion—functioning as a drill or perforator—adds significant utility value over a standard preform. The creamy beige chert shows authentic surface patination and 'desert varnish' consistent with the archaeological record of the Great Plains. Use-wear along the lateral margins suggests this was a curated tool rather than debitage. The market for Paleo-Indian artifacts remains robust, especially for items with specific find-spot data like Guthrie. Comparable multi-tools from the late terminal Pleistocene typically fetch mid-to-high three-figure sums. However, valuation is heavily dependent on the integrity of its history. From these images alone, I cannot definitively rule out modern flint-knapping or 'sweetening' of the edges. A full authentication would require a microscopic 'use-wear' analysis to differentiate prehistoric micro-fractures from modern mechanical damage. Furthermore, documented provenance—such as a dated discovery log or inclusion in a known private collection—is essential to reach the higher end of the valuation. Without an in-hand tactile inspection to feel the 'waxy' texture and assess the depth of the patina in the flake scars, this evaluation remains a professional estimate based on visual morphology. Should this piece be verified as a genuine unhafted hand-axe with an integrated drill, its rarity as a multi-functional implement makes it a desirable piece for regional lithic enthusiasts.

Get your items appraised

Instant estimates of your treasures with AI-powered appraisals

Browse More Appraisals