Portugal 1966 Portuguese Scientists

=Description=
 * Issue Date: 01-12-1966
 * Withdrawn: 30-03-1972
 * Designed by: Pinto,Cândido Costa
 * Engraving: 
 * Printed by: Casa da Moeda
 * Print Process: Offset
 * Paper: Polished
 * Width: mm
 * Height: mm
 * Perforations: 13½
 * Format:  Sheet of 10x10

=Stamps=

=Print run=

=First Day Cover=

Postmarks: Lisboa, Porto, Coimbra, Funchal

=Data Serie=


 * AF-Afinsa (Portugal & former Colonies)
 * SC-Scott
 * MI-Mitchel
 * YT-Yvert et Tellier
 * NVPH-Dutch Catalogue
 * SG-Stanley Gibbons