Fret Wear Scale
Fret wear is quantified using digital micrometer readings at crown height, benchmarked against original manufacturer specifications.
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Condition Grading Standard: Visible, Verifiable, Fair
Our condition grading rests on transparent, tool-driven metrics—not opinion. Every guitar receives a formal assessment grounded in repeatable measurements and archival comparison, with photographic evidence at key wear points. This standard ensures your evaluation is as precise as the instrument itself, supporting confident decisions through objective, open-source documentation.
Finish Integrity Index
Finish evaluation uses R-10 UV lighting to reveal original lacquer integrity and distinguish factory from post-factory refinishes.
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Structural Integrity Audit
Body resonance is mapped via tap-tone at six points, with thresholds defined per model line to detect internal damage or previous repairs.
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