Official Numbering Systems
In general, governments have not tried to number their own stamps. The People's Republic of China is a notable exception, having inscribed most of its stamps with a unique numbering system since 1949.
In 2002, as part of efforts to control allegedly illegal stamps, the Universal Postal Union introduced the WADP Numbering System (WNS) for new issues by UPU members.
Read more about this topic: Stamp Numbering System
Famous quotes containing the words official, numbering and/or systems:
“I thought it altogether proper that I should take a brief furlough from official duties at Washington to mingle with you here to-day as a comrade, because every President of the United States must realize that the strength of the Government, its defence in war, the army that is to muster under its banner when our Nation is assailed, is to be found here in the masses of our people.”
—Benjamin Harrison (1833–1901)
“The task he undertakes
Is numbering sands and drinking oceans dry.”
—William Shakespeare (1564–1616)
“No civilization ... would ever have been possible without a framework of stability, to provide the wherein for the flux of change. Foremost among the stabilizing factors, more enduring than customs, manners and traditions, are the legal systems that regulate our life in the world and our daily affairs with each other.”
—Hannah Arendt (1906–1975)