9804.00.80—Articles (including not over 50 cigars, or 300 cigarettes, or 2 kilograms of smoking tobacco or a proportionate amount of each, and not over 1 liter of alcoholic beverages), reasonable and appropriate, and intended exclusively, for the bona fide personal use of, and (except for articles consumed in use) to be taken out of the United States by, any person arriving in the United States who is leaving a vessel, vehicle or aircraft, engaged in international traffic, on which he is employed, with the intention of resuming such employment