Description
1991 22P DOGS ERROR IMPERFORATE UPPER RIGHT CORNER MARGINAL BLOCK OF FOUR (SG1531a). A superb unmounted o.g. upper right corner marginal IMPERFORATE block of four 1991 22p Dogs, King Charles spaniel (SG1531a). Rare piece, Pierron quotes "circa 15 mint pairs". (Ref 139556).
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