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Date of issue: 15th of May 1971.
OBC/COB number: 1580
Created by: Jean Malvaux
Perforation: 11 1/2
Size: 35mm x 24mm
Composition of the sheets: 30
Printing Process: Screendeepprint
Number of plates: 1-2-3-4
Printing Run: 2.750.000ex ;
Paper: P3 ( see paper Types )
1580 - 7F - Groundstation