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.

PY007.06

Country / Post Paraguay
Date of Issue 10 November 2006
Primary theme Music & Dance (Musical instruments)
Subject Mercosur 2006 - Musical Instruments - Guitar
Width 35.0 mm
Height 45.0 mm
Denomination 6000 PYG
Number in set 2 (show set)
Layout/Format sheet of 25
Perforations 13.5 by 13.5
Stamp issuing authority Correo Paraguayo
Printer Fiscal Assets Department - Asunción