unused Block of Four 1860-63, 5c Blue on yellowish paper (10a, Gibbons 12), block of four, unused, part o.g., h.r., fine, Scott retail $1,100.00, Gibbons £1,000 photo

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unused Block of Four 1860-63, 5c Blue on yellowish paper (10a, Gibbons 12), block of four, unused, part o.g., h.r., fine, Scott retail $1,100.00, Gibbons £1,000 photo