CAMEROUN (1956) Mobile medical clinic*. Sepia printer's proof. Scott No 329, Yvert No 303. Only 3-4 exist!
AVAILABLE AT $200
CAMEROUN (1962) Kapsikis Mokolo peak*. Sepia printer's proof. Scott No C44, Yvert No PA56. These are the rarest of the French proofs. Only 3-4 were made from the unhardened die as a final check before printing.
AVAILABLE AT $200