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.

MX030.11

Country / Post Mexico
Date of Issue 26 September 2011
Primary theme Engineering (Civil & Mechanical)
Subject Large Roads Infrastructure
Width 40.0 mm
Height 40.0 mm
Denomination 11.50 MXN
Number in set 3 (show set)
Layout/Format miniature sheet of 3 of 3 designs
Perforations 13 by 13
Stamp issuing authority Servicio Postal Mexicano
Printer Talleres de Impresion de Estampillas y Valores