No biscuits, buns, scones, or rolls of bread which weigh less than one ounce or more than four (4) ounces shall be manufactured, procured, kept for the purpose of sale, offered or exposed for sale, or sold in the Village; provided, however, that a variation or tolerance of not more than one ounce per pound in excess or deficiency from the standard unit weight shall be allowed, and the standard weights herein specified shall be determined by averaging the weight of not less than five (5) dozen biscuits, buns, scones, or rolls of bread of any one unit. This Section will be considered to have been complied with if the weight of not less than five (5) dozen of the same averages out the correct net weight. Such biscuits, buns, scones, and rolls of bread are not required to be labeled.