421B.4. Combination sales
In all offers for sale or sales involving cigarettes and any other item at a combined price, and in all offers for sale, or sales, involving the giving of any gift or concession of any kind whatsoever (whether it be coupons or otherwise), the wholesaler's or retailer's combined selling price shall not be below the cost to the wholesaler or the cost to the retailer, respectively, of the total of all articles, products, commodities, gifts and concessions included in such transactions: If any such articles, products, commodities, gifts or concessions, shall not be cigarettes, the basic cost thereof shall be determined in like manner as provided in section 421B.2, subsection 8 .