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Lot 2295 (#6369)
Est. £280 - £320
UNITED NATIONS - NEW YORK OFFICES 1975 Peaceful Uses of Outer Space IMPERF PLATE PROOFS BLOCKS of 4 complete set, Scott 256Pl & 257Pl, superb never hinged mint, with inked fingerprints on the reverse as security device. Very fresh & scarce. (2 blocks = 8 proofs)
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Express #6369
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