The original sets of samples of the bales constituting a lot or mark to be classified separately shall be inclosed in one or more wrappers or containers, as the case may require. The wrappers or containers of original samples shall be so labeled or marked, or both, as to show that they contain original samples, together with the lot number, if any, the marks, and the number of bales, and such other information as may be necessary in accordance with the instructions of the Area Director of the Marketing Services Office to which the samples are to be delivered.