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.

BR004.18

Country / Post Brazil
Date of Issue 4 May 2018
Primary theme Post & Philately
Subject Homage to the Postal Library
Width 40.0 mm
Height 30.0 mm
Denomination 1.55 BRL
Number in set 1
Layout/Format sheet of 18
Perforations 11.5 by 12
Stamp issuing authority Empresa Brasileira de Correios e Telegrafos
Printer Casa da Moeda do Brasil
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