UNITED NATIONS VIENNA OFFICES 2000 55th Anniversary IMPERF PLATE PROOFS PAIRS complete sets, Scott V275Pl & V276Pl, superb never hinged mint, very fresh & scarce. (2 pairs = 4 proofs)

UNITED NATIONS NEW YORK OFFICES 1977 25c Fight against Racial Discrimination IMPERF PLATE PROOFS, Scott 288Pl, superb never hinged mint lower left corner BLOCK of 4 with UN emblem in the margin, with inked fingerprints on the reverse as a security devise, very fresh & scarce. (4 proofs)