Selos de Portugal 2014 Ano Internacional Cristalografia Geologia calcopirite Année internationale Cristallographie geology

https://www.delcampe.net/fr/collections/timbres/geologie/non-classes/portugal-2014-ano-internacional-cristalografia-geologia-calcopirite-annee-internationale-cristallographie-geology-1009459202.html

Mundifil n.º 4473

Country / Post	Portugal
Date of Issue	21 July 2014
Primary theme	Minerology & Geology (Minerals)  Science & Technology (Physics & chemistry)
Subject	2014 - International Year of Crystallography
Width	40.0 mm
Height	30.6 mm
Denomination	0.42 €
Number in set	6
Layout/Format	sheet of 50
Perforations	13 by 13
Stamp issuing authority	CTT Correios de Portugal SA
Printer	Imprensa Nacional Casa da Moeda