30c Black (154). Two vertical blocks of ten which originally formed a block of 20, intense shade and impression, tied by blue quartered cork cancels on piece, also tied by red wax seal at upper left where tiny tear, few flaws including slight creases, third stamp in bottom row defective, otherwise Fine, an irregular block of sixteen is the largest reported used multiple, ex Curtis, 1988 P.F. certificate no longer accompanies, Scott value $5,750.00 as pairs

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