3c Dark Violet, Ty. II, Vertical Pair, Imperforate Horizontally (502c). Two pairs in a block of four, natural straight edge and part of guide line at left, top right stamp small h.r., others lightly hinged, rich color and choice centering, light creases at left

VERY FINE APPEARANCE. A RARE BLOCK OF FOUR CONTAINING TWO VERTICAL PAIRS IMPERFORATE HORIZONTALLY.

This is the only block we have offered since an off-center block of six in our 1990 Rarities Sale.

Ex "Georgetown". Small dealer's backstamps. With 1988 P.F. certificate. Scott Retail as two pairs

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