Timbres Année internationale de la lumière Ano Internacional da Luz Light internationales jahr des lichtes

https://www.delcampe.net/en_GB/collectables/stamps/environment-climate-protection/portugal-2015-annee-internationale-de-la-lumiere-ano-internacional-da-luz-light-internationales-jahr-des-lichtes-746424119.html

Mundifil n.º 4635 & 4636

Country / Post	Portugal
Date of Issue	14 October 2015
Primary theme	Astronomy & Space
Subject	International Year of Light
Width	30.6 mm
Height	40.0 mm
Denomination	0.45 €
Number in set	4
Layout/Format	sheet of 50 of 2 designs
Perforations	13 by 13
Stamp issuing authority	CTT Correios de Portugal SA
Printer	Cartor Security Printing