The World Association for the Development of Philately (WADP) and the Universal Postal Union (UPU) jointly conceived and developed the WADP Numbering System - WNS, which was launched on 1 January 2002.

MX051.13

Country / Post Mexico
Date of Issue 12 December 2013
Primary theme Economy & Industry
Subject 20th Anniversary of the Mexican Institute for Industrial Property (IMPI)
Width 40.0 mm
Height 48.0 mm
Denomination 7.00 MXN
Number in set 1
Layout/Format sheet
Perforations 13.5 by 13.5
Stamp issuing authority Servicio Postal Mexicano
Printer Talleres de Impresion de Estampillas y Valores