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.

PY017.04

Country / Post Paraguay
Date of Issue 22 September 2004
Primary theme Transportation (Rail) (Steam engines)
Subject Paraguayan Railroad - Loc.10 (Krupp) - 1886 'Sapucai'
Width 50.0 mm
Height 40.0 mm
Denomination 6000 PYG
Number in set 3 (show set)
Layout/Format miniature sheet of 1
Perforations 6 by 6
Stamp issuing authority Correo Paraguayo
Printer Fiscal Assets Department - Asunción