The postage machine takes advantage of an imprint, often called the indicia or frank, which incorporates the dollar degree of the postage utilized, a dated postmark, along with a cancellation. The imprint or franking features a barcode With all the mail sender’s identification to forestall the use of copyright postage. https://www.whofish.org/Default.aspx?tabid=45&modid=379&action=detail&itemid=310351&rCode=33