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.

SZ002.12

Country / Post Swaziland
Date of Issue 2 April 2012
Primary theme Fauna (Insects - General)
Subject Valueless Locust and Grasshoppers - Schistocerra solitaria
Width 42.0 mm
Height 28.0 mm
Denomination B
Number in set 4 (show set)
Layout/Format sheet of 50
Perforations 13.25 by 13.75
Stamp issuing authority Swaziland Posts and Telecommunications Corporation
Printer Joh Enschede Security Printer