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.

GR005.18

Country / Post Greece
Date of Issue 19 March 2018
Primary theme Fine Arts
Science & Technology
Subject Science and Art through the Microscope - Butterfly
Width 40.5 mm
Height 40.0 mm
Denomination 0.20 €
Number in set 5 (show set)
Layout/Format sheet of 20
Perforations 14 by 14
Stamp issuing authority Hellenic Post
Printer Veridos Matsoukis SA Security Printing
Connect to the web shop of the issuing stamp authority