UNITED NATIONS VIENNA OFFICES 1982 5s Human Environment IMPERF PLATE PROOFS BLOCK of 4, Scott V25PL, superb never hinged mint, with inked fingerprints on the reverse as a security device, very fresh & scarce, only 50 produced. (4 proofs)

Send Enquiry for UNITED NATIONS VIENNA OFFICES 1982 5s Human Environment IMPERF PLATE PROOFS BLOCK of 4, Scott V25PL, superb never hinged mint, with inked fingerprints on the reverse as a security device, very fresh & scarce, only 50 produced. (4 proofs)