Each and every person, firm, corporation, or association, being a manufacturer of or a wholesale or retail dealer in gold or silver jewelry, gold ware, silver goods, or silverware, who or which shall knowingly violate any of the provisions of sections 294 to 300 of this title, and every officer, manager, director, or managing agent of any such corporation or association having knowledge of such violation and directly participating in such violation or consenting thereto, shall be deemed guilty of a misdemeanor, and upon conviction thereof in any court of the United States having jurisdiction of crimes within the district in which such violation was committed or through which has been conducted the transportation of the article in respect to which such violation has been committed, shall be punished by a fine of not more than $500 or imprisonment for not more than three months, or both, at the discretion of the court. Whenever the offense is begun in one jurisdiction and completed in another it may be dealt with, inquired of, tried, determined, and punished in either jurisdiction in the same manner as if the offense had been actually and wholly committed therein.