Any person who, without having an unrevoked written authority from such trade union, labor association or labor organization, willfully forges or procures to be forged such label or trademark, with intent to sell or assist other persons to sell, any goods to which such forged label is affixed as having been made, manufactured, or produced in whole or in part by labor, laborers, or employees who are members of, or allied or associated with, such trade union, labor association, or labor organization, is guilty of a misdemeanor, punishable by a fine not more than one thousand dollars ($1,000) or imprisonment for not more than 90 days, or both.