Displays the list of UPU type card back templates.

The site has started to list the models of card backs of the UPU (Universal Postal Union) type not divided that allows to identify families of cards printed at the same printer.

Information management on the site involves information objects. The main objects of information are postcards, series of cards, publishers, printers. Every object belongs to an information domain. For a user to be able to perform an action on an object, he must be authorized. He can see his authorization on his account