Grading with a single ♦, ♥, ♣ or ♠ have been discontinued in 1990.This applies as well to pipes with ♠♠ and ♠♠♠ markings.
Becker pipes grading nomenclature
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| Royal Flush | ♠ ♣ ♦ ♥ | |
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Elite Elite A Elite B Elite C |
Very rare or difficult-to-make shapes are stamped with the Collection logo: 