unused Block Larger Than four ½a. Plate II imperforate, a complete sheet of twenty-four in deep bright blue; a little toned and with stains and other faults, though very rare. Believed to be of proof status

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unused Block Larger Than four ½a. Plate II imperforate, a complete sheet of twenty-four in deep bright blue; a little toned and with stains and other faults, though very rare. Believed to be of proof status