CAMBODIA (1973) INTERPOL emblem*. Die proof in black signed by the engraver LARRIVIERE. Scott No 315, Yvert No 341.
AVAILABLE AT $140
MONACO (1974) Palaces of Vienna & Monaco*. Die proof in black signed by the engraver HALEY. Interpol. Scott No 913, Yvert No 966.
AVAILABLE AT $160
NEW CALEDONIA (2014) Ile des Pis Prison*. Pair of die proofs in black signed by the engraver LAVERGNE. Yvert No 1226.
AVAILABLE AT $140