Any person introducing, selling, advertising, or offering for sale, in commerce, or processing for commerce, a fur product, or any person selling, advertising, offering for sale or processing a fur product which has been shipped and received in commerce, may substitute for the label affixed to such product pursuant to section
69b of this title, a label conforming to the requirements of such section, and such label may show in lieu of the name or other identification shown pursuant to section
69b
(2)(E) of this title on the label so removed, the name or other identification of the person making the substitution. Any person substituting a label shall keep such records as will show the information set forth on the label that he removed and the name or names of the person or persons from whom such fur product was received, and shall preserve such records for at least three years. Neglect or refusal to maintain and preserve such records is unlawful, and any person who shall fail to maintain and preserve such records shall forfeit to the United States the sum of $100 for each day of such failure which shall accrue to the United States and be recoverable by a civil action. Any person substituting a label who shall fail to keep and preserve such records, or who shall by such substitution misbrand a fur product, shall be guilty of an unfair method of competition, and an unfair or deceptive act or practice, in commerce under the Federal Trade Commission Act [
15 U.S.C.
41 et seq.].