Exhibition 'Postphila I'.
Date of issue: 21th of October 1967
OBC/COB number: Block 44
see nr 1435
Created by: Oscar Bonnevalle /Constant Spinoy
Perforation: 11 1/2
Composition of the sheets: 1
Printing Process: Combined Steel and Screendeepprint
Number of plates:
Printing Run: 948.410 block5.000.000ex each
Paper: P3 ( see paper Types)
1436 - 10F+5F -Logo of V.Z.W. "Pro-Post"