AI Appraisal Estimate

This item is a specialty automotive tool, specifically an ignition key blank selection guide or a key bitting depth gauge, likely used for GM (General Motors) vehicles. It is constructed from a flat piece of brushed or ground metal, likely stainless steel or hardened steel, giving it a light gray, almost silver, appearance with a matte finish. The overall shape is an elongated oval or a rounded rectangle with four distinct notches cut into the periphery, two on each of the shorter, flat sides. The central feature is a large circular cutout, surrounded by two concentric rings of smaller circular holes. The inner ring contains six holes, and the outer ring contains twelve holes, all of uniform size within their respective rings, suggesting precision manufacturing for measurement or alignment. Although no specific measurements are discernible, it appears to be hand-held size. There are minimal signs of wear, mostly light surface scratches consistent with use in a workshop environment, but no major damage, rust, or deformation. A faint, diamond-shaped logo or marking with the letters "GM" or a similar manufacturer's mark is partially visible on the left side, indicating its origin or intended use. The edges appear smooth and well-finished, suggesting good craftsmanship suitable for a durable tool. The inclusion of various taps and dies in the surrounding area implies that this tool is part of a larger set used for automotive lock or ignition system work, particularly for key cutting or decoding.

Upon examining the provided image of the GM Ignition Key Blank Selection Guide/Key Bitting Depth Gauge, I assess its condition as very good, despite being a used tool. The minimal surface scratches are consistent with workshop use and do not impair functionality. No major damage, rust, or deformation is visible. The partially visible 'GM' mark strongly suggests authenticity as a General Motors factory or licensed tool. However, without a clear, verifiable view of this mark, and specifically, its full identifier (e.g., part number, manufacturer data), I cannot definitively verify 100% authenticity from images alone. An in-person examination would allow for precise measurement, material analysis (e.g., metallurgical testing for hardened steel), and a closer inspection of manufacturing marks, which would confirm its origin and potentially its intended application. As a specialty automotive tooling item, likely for locksmiths or automotive technicians, its market is niche but consistent. Comparables would include similar key decoding or bitting tools for older GM vehicles, which vary widely based on condition and completeness. Demand for such specific, older GM tools exists among professional automotive locksmiths, classic car restorers, and tool collectors. While not exceedingly rare, its specialized function for a specific make and era contributes to its value. Factors impacting value include its good condition, apparent authenticity, and its practical utility for a professional. The presence of surrounding taps and dies suggests it's part of a complete professional kit, which often enhances individual tool value if sold as a set. Given these considerations, I estimate its value.