A color or group symbol used with another symbol to form the third factor of a grademark to denote a particular side or characteristic of the tobacco. As applied to flue-cured tobacco, the combination symbols are XL-lug side, PO-oxidized primings, XO-oxidized lugs or cutters, BO-oxidized leaf or smoking leaf, GL-thin-bodied nondescript, GF-medium-bodied nondescript, LP-lemon (primings side), and FP-orange (primings side), KK-excessively scorched.
7 C.F.R. §29.1008