In short, press request alerts are requests for sources of information from journalists. Let's say you're a journalist putting together an article on wearable technology for The Guardian. Perhaps you need a quote from an industry expert or some products that you can feature within your article? Well, all you need to do is send out a request to a press service and you can wait for someone to get back to you.
Other information placed on the Item prior to the time an image of the Item is captured, such as any required identification written on the front of the Item and any endorsements applied to the back of the Item.  Images shall also meet any standards for image quality established by American National Standards Institute (ANSI), the Board of Governors of the Federal Reserve, or any other regulatory agency, clearing house or association.