Shades of the 2¢ envelopes. The top two images are the red and carmine shades of the 1889
and later printings (UPSS 6a); the pale pink (UPSS 6) is center left; the size 6 rose
shade of 1884 is center right (UPSS 5); and the size 5 rose and pale rose shades are the
two bottom images (UPSS 4 and 4a). Notice the darker color of the glazed paper used for
the pink shade.
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