| Claudio Cavicchi Pipes Grading System |
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Black Rusticated Ⓒ
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| Brown Smooth Ⓒ | ||
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| Clear Smooth ⒸⒸⒸⒸ | ||
| Clear Smooth (Straight Grain) ⒸⒸⒸⒸⒸ / Rare | ||
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| Diamante (Top Grade) / Very Very Rare | ||
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