European year of the elderly issue - X, 50th anniversary : G. W. U. - Y

Abstract

These two issues in the four-colour process using the standard CMYK (Cyan, Magenta, Yellow, Black) process colours for each value, in issues X and Y. Colour checks in the form of coloured discs 3mm in diameter are seen in the right hand margin, next ot the last stamp of the bottom row, in each Pane, of all values, of issues X and Y. The colours from top to bottom correspond to the colours used for Pane numbers, from left to right, on all Panes, of all values, of issues X and Y. Cumulative totals of progressive columns of stamps are seen in top and bottom margins, printed in black, in all Panes, of all values, of issues X and Y. [excerpt]