Religious commemorations issue - X, Maltese uniforms 5th set issue - Y

Abstract

These sets were printed in multicolours using the same set of four colours, for each value, in issue X, and another set of four colours, for each value, in issue Y. Colour checks in the form of coloured discs 3mm in diameter, are seen in the right hand margin, next to the last stamp of the bottom row, in all Panes, of all values, in issues X and Y. The colours from top to bottom correspond to the colours used for Pane Numbers from left to right, in all Panes, of all values, in 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, in issues X and Y. [excerpt]