POLAND (1957) UN Building*. Black print. Scott No 763, Yvert No 887.
AVAILABLE AT $15
AUSTRIA (2020) UN 75th anniversary*. Black print.
AVAILABLE AT $15
BELGIUM (1979) NATO emblem. Ministerial proof. Scott No 1028, Yvert No 1922.
AVAILABLE AT $50
CAMEROUN (1961) UN building*. Flag*. Scott No 341. Yvert No 318. Cameroun's admission to the UN. Sepia Printer's Die Proof. Only 4 copies printed. This is the only value from a set of three which exists in Die Proof format since all values have the same design. Very rare!
AVAILABLE AT $250
AUSTRIA (2001) Refugees commissioner*. Black proof. Scott No 1847.
AVAILABLE AT $12