An item which is rigid or semirigid, generally flat, and smooth. Its thickness is small in comparison to its length and width. It contains letters, numerals, and/or symbols, or it may be a silhouette of the designated item. Does not contain words or instrucitons. See also marker, identification; plate, identification; plate, instruction; plate set, designation; decal; label; and tag, marker. For items having the combination function of a plate, designation; and plate, instruction; see plate, instruction. For items having the combination function of plate, designation; and plate, identification; see plate, identification. See also plate set, designation.