Newspaper Dealers-Back Number (Wholesale) is a subdivision of the Books, Periodicals, and Newspapers (Wholesale) industry. This industry involves the wholesale distribution of newspapers, magazines, and other periodicals, with a focus on back issues or "back numbers" of these publications. Companies in this industry typically purchase large quantities of back issues from publishers or other sources and then resell them to retailers, collectors, and other interested parties. Newspaper Dealers-Back Number (Wholesale) companies may also offer related services such as cataloging, grading, and authentication of back issues. They may specialize in certain types of publications, such as vintage newspapers or rare magazines, or may offer a broad range of back issues across multiple categories.