Symbol (S).
CFR · 2024-01-01 · US · Title 7
As applied to Flue-cured tobacco the symbol (S) when used (a) as the third factor of a grademark, denotes slick, unripe tobacco in lemon or orange color, and (b) when used preceding a grademark, denotes tobacco in strip form. (See Rules 17 and 28.)
official document · source cfr-2024 · id 7:§ 29.1066