UNITED NATIONS (1990) Organized criminals*. Set of 8 imperforate progressive proof pairs. Scott No 581, Yvert No 577. Crime Prevention. From the UN printer archives. Rare!
AVAILABLE AT $100
GABON (1973) Globe*. Scales*. Sword*. Trial color proofs in strip of 5. 50th anniversary of INTERPOL. Scott No 317, Yvert No 316.
AVAILABLE AT $60